Home / 6,385.16-8,811.50-3,590.66

Finding the Fourth Proportional to 6,385.16, 8,811.50 and 3,590.66

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Solution

The fourth proportional to 6,385.16, 8,811.50 and 3,590.66 is: 4,955.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.16 : 8,811.50 = 3,590.66 : x
  2. Step 2: Convert to fraction form
    6,385.16/8,811.50 = 3,590.66/x
  3. Step 3: Cross multiply
    6,385.16x = 8,811.50 × 3,590.66
  4. Step 4: Simplify right side
    6,385.16x = 31,639,100.59
  5. Step 5: Solve for x
    x = 31,639,100.59/6,385.16
  6. Step 6: Final answer
    x = 4,955.10

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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.