Home / 6,385.25-8,811.69-3,590.75

Finding the Fourth Proportional to 6,385.25, 8,811.69 and 3,590.75

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Solution

The fourth proportional to 6,385.25, 8,811.69 and 3,590.75 is: 4,955.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.25 : 8,811.69 = 3,590.75 : x
  2. Step 2: Convert to fraction form
    6,385.25/8,811.69 = 3,590.75/x
  3. Step 3: Cross multiply
    6,385.25x = 8,811.69 × 3,590.75
  4. Step 4: Simplify right side
    6,385.25x = 31,640,575.87
  5. Step 5: Solve for x
    x = 31,640,575.87/6,385.25
  6. Step 6: Final answer
    x = 4,955.26

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Find fourth proportional to 3,192.63, 4,405.85 and 1,795.38
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.