Home / 2,839.20-4,248.70-2,097.04

Finding the Fourth Proportional to 2,839.20, 4,248.70 and 2,097.04

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Solution

The fourth proportional to 2,839.20, 4,248.70 and 2,097.04 is: 3,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.20 : 4,248.70 = 2,097.04 : x
  2. Step 2: Convert to fraction form
    2,839.20/4,248.70 = 2,097.04/x
  3. Step 3: Cross multiply
    2,839.20x = 4,248.70 × 2,097.04
  4. Step 4: Simplify right side
    2,839.20x = 8,909,693.85
  5. Step 5: Solve for x
    x = 8,909,693.85/2,839.20
  6. Step 6: Final answer
    x = 3,138.10

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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.