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Finding the Fourth Proportional to 1,487.29, 2,052.10 and 963.22

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Solution

The fourth proportional to 1,487.29, 2,052.10 and 963.22 is: 1,329.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.29 : 2,052.10 = 963.22 : x
  2. Step 2: Convert to fraction form
    1,487.29/2,052.10 = 963.22/x
  3. Step 3: Cross multiply
    1,487.29x = 2,052.10 × 963.22
  4. Step 4: Simplify right side
    1,487.29x = 1,976,623.76
  5. Step 5: Solve for x
    x = 1,976,623.76/1,487.29
  6. Step 6: Final answer
    x = 1,329.01

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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.