Home / 4,049.12-5,587.28-2,280.72

Finding the Fourth Proportional to 4,049.12, 5,587.28 and 2,280.72

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Solution

The fourth proportional to 4,049.12, 5,587.28 and 2,280.72 is: 3,147.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,049.12 : 5,587.28 = 2,280.72 : x
  2. Step 2: Convert to fraction form
    4,049.12/5,587.28 = 2,280.72/x
  3. Step 3: Cross multiply
    4,049.12x = 5,587.28 × 2,280.72
  4. Step 4: Simplify right side
    4,049.12x = 12,743,021.24
  5. Step 5: Solve for x
    x = 12,743,021.24/4,049.12
  6. Step 6: Final answer
    x = 3,147.11

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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.