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Finding the Fourth Proportional to 2,388.91, 3,583.36 and 1,637.68

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Solution

The fourth proportional to 2,388.91, 3,583.36 and 1,637.68 is: 2,456.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.91 : 3,583.36 = 1,637.68 : x
  2. Step 2: Convert to fraction form
    2,388.91/3,583.36 = 1,637.68/x
  3. Step 3: Cross multiply
    2,388.91x = 3,583.36 × 1,637.68
  4. Step 4: Simplify right side
    2,388.91x = 5,868,370.90
  5. Step 5: Solve for x
    x = 5,868,370.90/2,388.91
  6. Step 6: Final answer
    x = 2,456.51

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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.