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Finding the Fourth Proportional to 965.92, 1,333.76 and 747.04

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Solution

The fourth proportional to 965.92, 1,333.76 and 747.04 is: 1,031.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    965.92 : 1,333.76 = 747.04 : x
  2. Step 2: Convert to fraction form
    965.92/1,333.76 = 747.04/x
  3. Step 3: Cross multiply
    965.92x = 1,333.76 × 747.04
  4. Step 4: Simplify right side
    965.92x = 996,372.07
  5. Step 5: Solve for x
    x = 996,372.07/965.92
  6. Step 6: Final answer
    x = 1,031.53

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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.