Home / 3,984.71-5,500.38-3,422.93

Finding the Fourth Proportional to 3,984.71, 5,500.38 and 3,422.93

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Solution

The fourth proportional to 3,984.71, 5,500.38 and 3,422.93 is: 4,724.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.71 : 5,500.38 = 3,422.93 : x
  2. Step 2: Convert to fraction form
    3,984.71/5,500.38 = 3,422.93/x
  3. Step 3: Cross multiply
    3,984.71x = 5,500.38 × 3,422.93
  4. Step 4: Simplify right side
    3,984.71x = 18,827,391.42
  5. Step 5: Solve for x
    x = 18,827,391.42/3,984.71
  6. Step 6: Final answer
    x = 4,724.91

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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.