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Finding the Fourth Proportional to 1,626.39, 2,440.27 and 652.27

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Solution

The fourth proportional to 1,626.39, 2,440.27 and 652.27 is: 978.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.39 : 2,440.27 = 652.27 : x
  2. Step 2: Convert to fraction form
    1,626.39/2,440.27 = 652.27/x
  3. Step 3: Cross multiply
    1,626.39x = 2,440.27 × 652.27
  4. Step 4: Simplify right side
    1,626.39x = 1,591,714.91
  5. Step 5: Solve for x
    x = 1,591,714.91/1,626.39
  6. Step 6: Final answer
    x = 978.68

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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.