Home / 1,612.17-2,417.06-515.90

Finding the Fourth Proportional to 1,612.17, 2,417.06 and 515.90

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Solution

The fourth proportional to 1,612.17, 2,417.06 and 515.90 is: 773.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.17 : 2,417.06 = 515.90 : x
  2. Step 2: Convert to fraction form
    1,612.17/2,417.06 = 515.90/x
  3. Step 3: Cross multiply
    1,612.17x = 2,417.06 × 515.90
  4. Step 4: Simplify right side
    1,612.17x = 1,246,961.25
  5. Step 5: Solve for x
    x = 1,246,961.25/1,612.17
  6. Step 6: Final answer
    x = 773.47

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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.