Home / 1,612.46-2,418.75-516.68

Finding the Fourth Proportional to 1,612.46, 2,418.75 and 516.68

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Solution

The fourth proportional to 1,612.46, 2,418.75 and 516.68 is: 775.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.46 : 2,418.75 = 516.68 : x
  2. Step 2: Convert to fraction form
    1,612.46/2,418.75 = 516.68/x
  3. Step 3: Cross multiply
    1,612.46x = 2,418.75 × 516.68
  4. Step 4: Simplify right side
    1,612.46x = 1,249,723.86
  5. Step 5: Solve for x
    x = 1,249,723.86/1,612.46
  6. Step 6: Final answer
    x = 775.04

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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.