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Finding the Fourth Proportional to 1,060.87, 1,590.97 and 735.25

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Solution

The fourth proportional to 1,060.87, 1,590.97 and 735.25 is: 1,102.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.87 : 1,590.97 = 735.25 : x
  2. Step 2: Convert to fraction form
    1,060.87/1,590.97 = 735.25/x
  3. Step 3: Cross multiply
    1,060.87x = 1,590.97 × 735.25
  4. Step 4: Simplify right side
    1,060.87x = 1,169,757.02
  5. Step 5: Solve for x
    x = 1,169,757.02/1,060.87
  6. Step 6: Final answer
    x = 1,102.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.