Home / 1,318.13-1,976.92-537.93

Finding the Fourth Proportional to 1,318.13, 1,976.92 and 537.93

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Solution

The fourth proportional to 1,318.13, 1,976.92 and 537.93 is: 806.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.13 : 1,976.92 = 537.93 : x
  2. Step 2: Convert to fraction form
    1,318.13/1,976.92 = 537.93/x
  3. Step 3: Cross multiply
    1,318.13x = 1,976.92 × 537.93
  4. Step 4: Simplify right side
    1,318.13x = 1,063,444.58
  5. Step 5: Solve for x
    x = 1,063,444.58/1,318.13
  6. Step 6: Final answer
    x = 806.78

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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.