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Finding the Fourth Proportional to 1,063.13, 1,465.29 and 876.02

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Solution

The fourth proportional to 1,063.13, 1,465.29 and 876.02 is: 1,207.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.13 : 1,465.29 = 876.02 : x
  2. Step 2: Convert to fraction form
    1,063.13/1,465.29 = 876.02/x
  3. Step 3: Cross multiply
    1,063.13x = 1,465.29 × 876.02
  4. Step 4: Simplify right side
    1,063.13x = 1,283,616.02
  5. Step 5: Solve for x
    x = 1,283,616.02/1,063.13
  6. Step 6: Final answer
    x = 1,207.40

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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.