Home / 5,590.75-7,715.24-3,106.75

Finding the Fourth Proportional to 5,590.75, 7,715.24 and 3,106.75

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Solution

The fourth proportional to 5,590.75, 7,715.24 and 3,106.75 is: 4,287.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.75 : 7,715.24 = 3,106.75 : x
  2. Step 2: Convert to fraction form
    5,590.75/7,715.24 = 3,106.75/x
  3. Step 3: Cross multiply
    5,590.75x = 7,715.24 × 3,106.75
  4. Step 4: Simplify right side
    5,590.75x = 23,969,321.87
  5. Step 5: Solve for x
    x = 23,969,321.87/5,590.75
  6. Step 6: Final answer
    x = 4,287.32

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Half scale
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Double scale
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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.