Home / 1,864.28-2,572.46-1,118.07

Finding the Fourth Proportional to 1,864.28, 2,572.46 and 1,118.07

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Solution

The fourth proportional to 1,864.28, 2,572.46 and 1,118.07 is: 1,542.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.28 : 2,572.46 = 1,118.07 : x
  2. Step 2: Convert to fraction form
    1,864.28/2,572.46 = 1,118.07/x
  3. Step 3: Cross multiply
    1,864.28x = 2,572.46 × 1,118.07
  4. Step 4: Simplify right side
    1,864.28x = 2,876,188.95
  5. Step 5: Solve for x
    x = 2,876,188.95/1,864.28
  6. Step 6: Final answer
    x = 1,542.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.