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Finding the Fourth Proportional to 951.80, 1,426.33 and 626.48

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Solution

The fourth proportional to 951.80, 1,426.33 and 626.48 is: 938.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.80 : 1,426.33 = 626.48 : x
  2. Step 2: Convert to fraction form
    951.80/1,426.33 = 626.48/x
  3. Step 3: Cross multiply
    951.80x = 1,426.33 × 626.48
  4. Step 4: Simplify right side
    951.80x = 893,576.00
  5. Step 5: Solve for x
    x = 893,576.00/951.80
  6. Step 6: Final answer
    x = 938.83

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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.