Home / 8,228.28-12,344.16-4,719.90

Finding the Fourth Proportional to 8,228.28, 12,344.16 and 4,719.90

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Solution

The fourth proportional to 8,228.28, 12,344.16 and 4,719.90 is: 7,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.28 : 12,344.16 = 4,719.90 : x
  2. Step 2: Convert to fraction form
    8,228.28/12,344.16 = 4,719.90/x
  3. Step 3: Cross multiply
    8,228.28x = 12,344.16 × 4,719.90
  4. Step 4: Simplify right side
    8,228.28x = 58,263,200.78
  5. Step 5: Solve for x
    x = 58,263,200.78/8,228.28
  6. Step 6: Final answer
    x = 7,080.85

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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.