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Finding the Fourth Proportional to 1,258.07, 1,737.01 and 1,124.89

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Solution

The fourth proportional to 1,258.07, 1,737.01 and 1,124.89 is: 1,553.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258.07 : 1,737.01 = 1,124.89 : x
  2. Step 2: Convert to fraction form
    1,258.07/1,737.01 = 1,124.89/x
  3. Step 3: Cross multiply
    1,258.07x = 1,737.01 × 1,124.89
  4. Step 4: Simplify right side
    1,258.07x = 1,953,945.18
  5. Step 5: Solve for x
    x = 1,953,945.18/1,258.07
  6. Step 6: Final answer
    x = 1,553.13

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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.