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Finding the Fourth Proportional to 3,545.32, 4,892.38 and 1,973.40

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Solution

The fourth proportional to 3,545.32, 4,892.38 and 1,973.40 is: 2,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.32 : 4,892.38 = 1,973.40 : x
  2. Step 2: Convert to fraction form
    3,545.32/4,892.38 = 1,973.40/x
  3. Step 3: Cross multiply
    3,545.32x = 4,892.38 × 1,973.40
  4. Step 4: Simplify right side
    3,545.32x = 9,654,622.69
  5. Step 5: Solve for x
    x = 9,654,622.69/3,545.32
  6. Step 6: Final answer
    x = 2,723.20

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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.