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Finding the Fourth Proportional to 1,737.57, 2,397.77 and 981.33

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Solution

The fourth proportional to 1,737.57, 2,397.77 and 981.33 is: 1,354.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,737.57 : 2,397.77 = 981.33 : x
  2. Step 2: Convert to fraction form
    1,737.57/2,397.77 = 981.33/x
  3. Step 3: Cross multiply
    1,737.57x = 2,397.77 × 981.33
  4. Step 4: Simplify right side
    1,737.57x = 2,352,998.73
  5. Step 5: Solve for x
    x = 2,352,998.73/1,737.57
  6. Step 6: Final answer
    x = 1,354.19

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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.