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Finding the Fourth Proportional to 968.02, 1,335.87 and 525.92

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Solution

The fourth proportional to 968.02, 1,335.87 and 525.92 is: 725.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.02 : 1,335.87 = 525.92 : x
  2. Step 2: Convert to fraction form
    968.02/1,335.87 = 525.92/x
  3. Step 3: Cross multiply
    968.02x = 1,335.87 × 525.92
  4. Step 4: Simplify right side
    968.02x = 702,562.42
  5. Step 5: Solve for x
    x = 702,562.42/968.02
  6. Step 6: Final answer
    x = 725.77

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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.