Home / 1,246.12-1,867.95-516.31

Finding the Fourth Proportional to 1,246.12, 1,867.95 and 516.31

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Solution

The fourth proportional to 1,246.12, 1,867.95 and 516.31 is: 773.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.12 : 1,867.95 = 516.31 : x
  2. Step 2: Convert to fraction form
    1,246.12/1,867.95 = 516.31/x
  3. Step 3: Cross multiply
    1,246.12x = 1,867.95 × 516.31
  4. Step 4: Simplify right side
    1,246.12x = 964,436.59
  5. Step 5: Solve for x
    x = 964,436.59/1,246.12
  6. Step 6: Final answer
    x = 773.95

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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.