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Finding the Fourth Proportional to 1,260.36, 1,737.72 and 1,073.52

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Solution

The fourth proportional to 1,260.36, 1,737.72 and 1,073.52 is: 1,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.36 : 1,737.72 = 1,073.52 : x
  2. Step 2: Convert to fraction form
    1,260.36/1,737.72 = 1,073.52/x
  3. Step 3: Cross multiply
    1,260.36x = 1,737.72 × 1,073.52
  4. Step 4: Simplify right side
    1,260.36x = 1,865,477.17
  5. Step 5: Solve for x
    x = 1,865,477.17/1,260.36
  6. Step 6: Final answer
    x = 1,480.11

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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.