Home / 2,928.62-4,387.12-1,539.86

Finding the Fourth Proportional to 2,928.62, 4,387.12 and 1,539.86

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Solution

The fourth proportional to 2,928.62, 4,387.12 and 1,539.86 is: 2,306.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.62 : 4,387.12 = 1,539.86 : x
  2. Step 2: Convert to fraction form
    2,928.62/4,387.12 = 1,539.86/x
  3. Step 3: Cross multiply
    2,928.62x = 4,387.12 × 1,539.86
  4. Step 4: Simplify right side
    2,928.62x = 6,755,550.60
  5. Step 5: Solve for x
    x = 6,755,550.60/2,928.62
  6. Step 6: Final answer
    x = 2,306.74

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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.