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Finding the Fourth Proportional to 1,301.22, 1,951.14 and 752.67

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Solution

The fourth proportional to 1,301.22, 1,951.14 and 752.67 is: 1,128.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.22 : 1,951.14 = 752.67 : x
  2. Step 2: Convert to fraction form
    1,301.22/1,951.14 = 752.67/x
  3. Step 3: Cross multiply
    1,301.22x = 1,951.14 × 752.67
  4. Step 4: Simplify right side
    1,301.22x = 1,468,564.54
  5. Step 5: Solve for x
    x = 1,468,564.54/1,301.22
  6. Step 6: Final answer
    x = 1,128.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.