Home / 1,616.92-2,425.26-521.19

Finding the Fourth Proportional to 1,616.92, 2,425.26 and 521.19

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Solution

The fourth proportional to 1,616.92, 2,425.26 and 521.19 is: 781.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616.92 : 2,425.26 = 521.19 : x
  2. Step 2: Convert to fraction form
    1,616.92/2,425.26 = 521.19/x
  3. Step 3: Cross multiply
    1,616.92x = 2,425.26 × 521.19
  4. Step 4: Simplify right side
    1,616.92x = 1,264,021.26
  5. Step 5: Solve for x
    x = 1,264,021.26/1,616.92
  6. Step 6: Final answer
    x = 781.75

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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.