Home / 3,849.92-5,311.02-2,591.28

Finding the Fourth Proportional to 3,849.92, 5,311.02 and 2,591.28

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Solution

The fourth proportional to 3,849.92, 5,311.02 and 2,591.28 is: 3,574.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.92 : 5,311.02 = 2,591.28 : x
  2. Step 2: Convert to fraction form
    3,849.92/5,311.02 = 2,591.28/x
  3. Step 3: Cross multiply
    3,849.92x = 5,311.02 × 2,591.28
  4. Step 4: Simplify right side
    3,849.92x = 13,762,339.91
  5. Step 5: Solve for x
    x = 13,762,339.91/3,849.92
  6. Step 6: Final answer
    x = 3,574.71

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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.