Home / 2,861.91-4,287.10-2,398.39

Finding the Fourth Proportional to 2,861.91, 4,287.10 and 2,398.39

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Solution

The fourth proportional to 2,861.91, 4,287.10 and 2,398.39 is: 3,592.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.91 : 4,287.10 = 2,398.39 : x
  2. Step 2: Convert to fraction form
    2,861.91/4,287.10 = 2,398.39/x
  3. Step 3: Cross multiply
    2,861.91x = 4,287.10 × 2,398.39
  4. Step 4: Simplify right side
    2,861.91x = 10,282,125.78
  5. Step 5: Solve for x
    x = 10,282,125.78/2,861.91
  6. Step 6: Final answer
    x = 3,592.75

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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.