Home / 1,909.28-2,863.92-1,332.56

Finding the Fourth Proportional to 1,909.28, 2,863.92 and 1,332.56

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Solution

The fourth proportional to 1,909.28, 2,863.92 and 1,332.56 is: 1,998.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.28 : 2,863.92 = 1,332.56 : x
  2. Step 2: Convert to fraction form
    1,909.28/2,863.92 = 1,332.56/x
  3. Step 3: Cross multiply
    1,909.28x = 2,863.92 × 1,332.56
  4. Step 4: Simplify right side
    1,909.28x = 3,816,345.24
  5. Step 5: Solve for x
    x = 3,816,345.24/1,909.28
  6. Step 6: Final answer
    x = 1,998.84

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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.