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Finding the Fourth Proportional to 6,772.55, 9,345.90 and 3,788.43

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Solution

The fourth proportional to 6,772.55, 9,345.90 and 3,788.43 is: 5,227.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,772.55 : 9,345.90 = 3,788.43 : x
  2. Step 2: Convert to fraction form
    6,772.55/9,345.90 = 3,788.43/x
  3. Step 3: Cross multiply
    6,772.55x = 9,345.90 × 3,788.43
  4. Step 4: Simplify right side
    6,772.55x = 35,406,287.94
  5. Step 5: Solve for x
    x = 35,406,287.94/6,772.55
  6. Step 6: Final answer
    x = 5,227.91

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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.