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Finding the Fourth Proportional to 1,301.67, 1,951.97 and 608.18

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Solution

The fourth proportional to 1,301.67, 1,951.97 and 608.18 is: 912.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.67 : 1,951.97 = 608.18 : x
  2. Step 2: Convert to fraction form
    1,301.67/1,951.97 = 608.18/x
  3. Step 3: Cross multiply
    1,301.67x = 1,951.97 × 608.18
  4. Step 4: Simplify right side
    1,301.67x = 1,187,136.31
  5. Step 5: Solve for x
    x = 1,187,136.31/1,301.67
  6. Step 6: Final answer
    x = 912.01

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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.