Home / 6,929.10-9,561.86-3,785.30

Finding the Fourth Proportional to 6,929.10, 9,561.86 and 3,785.30

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Solution

The fourth proportional to 6,929.10, 9,561.86 and 3,785.30 is: 5,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929.10 : 9,561.86 = 3,785.30 : x
  2. Step 2: Convert to fraction form
    6,929.10/9,561.86 = 3,785.30/x
  3. Step 3: Cross multiply
    6,929.10x = 9,561.86 × 3,785.30
  4. Step 4: Simplify right side
    6,929.10x = 36,194,508.66
  5. Step 5: Solve for x
    x = 36,194,508.66/6,929.10
  6. Step 6: Final answer
    x = 5,223.55

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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.