Home / 2,861.28-3,947.52-2,339.52

Finding the Fourth Proportional to 2,861.28, 3,947.52 and 2,339.52

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Solution

The fourth proportional to 2,861.28, 3,947.52 and 2,339.52 is: 3,227.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.28 : 3,947.52 = 2,339.52 : x
  2. Step 2: Convert to fraction form
    2,861.28/3,947.52 = 2,339.52/x
  3. Step 3: Cross multiply
    2,861.28x = 3,947.52 × 2,339.52
  4. Step 4: Simplify right side
    2,861.28x = 9,235,301.99
  5. Step 5: Solve for x
    x = 9,235,301.99/2,861.28
  6. Step 6: Final answer
    x = 3,227.68

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1.5x scale

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.