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Finding the Fourth Proportional to 961.01, 1,325.89 and 541.29

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Solution

The fourth proportional to 961.01, 1,325.89 and 541.29 is: 746.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    961.01 : 1,325.89 = 541.29 : x
  2. Step 2: Convert to fraction form
    961.01/1,325.89 = 541.29/x
  3. Step 3: Cross multiply
    961.01x = 1,325.89 × 541.29
  4. Step 4: Simplify right side
    961.01x = 717,688.29
  5. Step 5: Solve for x
    x = 717,688.29/961.01
  6. Step 6: Final answer
    x = 746.81

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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.