Home / 1,626.72-2,239.92-1,294.08

Finding the Fourth Proportional to 1,626.72, 2,239.92 and 1,294.08

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Solution

The fourth proportional to 1,626.72, 2,239.92 and 1,294.08 is: 1,781.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.72 : 2,239.92 = 1,294.08 : x
  2. Step 2: Convert to fraction form
    1,626.72/2,239.92 = 1,294.08/x
  3. Step 3: Cross multiply
    1,626.72x = 2,239.92 × 1,294.08
  4. Step 4: Simplify right side
    1,626.72x = 2,898,635.67
  5. Step 5: Solve for x
    x = 2,898,635.67/1,626.72
  6. Step 6: Final answer
    x = 1,781.89

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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.