Home / 5,479.28-8,219.72-2,882.40

Finding the Fourth Proportional to 5,479.28, 8,219.72 and 2,882.40

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Solution

The fourth proportional to 5,479.28, 8,219.72 and 2,882.40 is: 4,324.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.28 : 8,219.72 = 2,882.40 : x
  2. Step 2: Convert to fraction form
    5,479.28/8,219.72 = 2,882.40/x
  3. Step 3: Cross multiply
    5,479.28x = 8,219.72 × 2,882.40
  4. Step 4: Simplify right side
    5,479.28x = 23,692,520.93
  5. Step 5: Solve for x
    x = 23,692,520.93/5,479.28
  6. Step 6: Final answer
    x = 4,324.02

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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.