Home / 5,230.28-7,217.84-2,872.47

Finding the Fourth Proportional to 5,230.28, 7,217.84 and 2,872.47

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Solution

The fourth proportional to 5,230.28, 7,217.84 and 2,872.47 is: 3,964.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.28 : 7,217.84 = 2,872.47 : x
  2. Step 2: Convert to fraction form
    5,230.28/7,217.84 = 2,872.47/x
  3. Step 3: Cross multiply
    5,230.28x = 7,217.84 × 2,872.47
  4. Step 4: Simplify right side
    5,230.28x = 20,733,028.86
  5. Step 5: Solve for x
    x = 20,733,028.86/5,230.28
  6. Step 6: Final answer
    x = 3,964.04

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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.