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Finding the Fourth Proportional to 1,624.50, 2,239.17 and 1,269.79

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Solution

The fourth proportional to 1,624.50, 2,239.17 and 1,269.79 is: 1,750.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.50 : 2,239.17 = 1,269.79 : x
  2. Step 2: Convert to fraction form
    1,624.50/2,239.17 = 1,269.79/x
  3. Step 3: Cross multiply
    1,624.50x = 2,239.17 × 1,269.79
  4. Step 4: Simplify right side
    1,624.50x = 2,843,275.67
  5. Step 5: Solve for x
    x = 2,843,275.67/1,624.50
  6. Step 6: Final answer
    x = 1,750.25

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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.