Home / 3,882.40-5,823.60-2,651.20

Finding the Fourth Proportional to 3,882.40, 5,823.60 and 2,651.20

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Solution

The fourth proportional to 3,882.40, 5,823.60 and 2,651.20 is: 3,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.40 : 5,823.60 = 2,651.20 : x
  2. Step 2: Convert to fraction form
    3,882.40/5,823.60 = 2,651.20/x
  3. Step 3: Cross multiply
    3,882.40x = 5,823.60 × 2,651.20
  4. Step 4: Simplify right side
    3,882.40x = 15,439,528.32
  5. Step 5: Solve for x
    x = 15,439,528.32/3,882.40
  6. Step 6: Final answer
    x = 3,976.80

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Similar ratio
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1.5x scale

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.