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Finding the Fourth Proportional to 1,087.71, 1,500.58 and 733.86

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Solution

The fourth proportional to 1,087.71, 1,500.58 and 733.86 is: 1,012.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087.71 : 1,500.58 = 733.86 : x
  2. Step 2: Convert to fraction form
    1,087.71/1,500.58 = 733.86/x
  3. Step 3: Cross multiply
    1,087.71x = 1,500.58 × 733.86
  4. Step 4: Simplify right side
    1,087.71x = 1,101,215.64
  5. Step 5: Solve for x
    x = 1,101,215.64/1,087.71
  6. Step 6: Final answer
    x = 1,012.42

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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.