Home / 5,158.99-7,124.15-4,882.78

Finding the Fourth Proportional to 5,158.99, 7,124.15 and 4,882.78

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Solution

The fourth proportional to 5,158.99, 7,124.15 and 4,882.78 is: 6,742.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.99 : 7,124.15 = 4,882.78 : x
  2. Step 2: Convert to fraction form
    5,158.99/7,124.15 = 4,882.78/x
  3. Step 3: Cross multiply
    5,158.99x = 7,124.15 × 4,882.78
  4. Step 4: Simplify right side
    5,158.99x = 34,785,657.14
  5. Step 5: Solve for x
    x = 34,785,657.14/5,158.99
  6. Step 6: Final answer
    x = 6,742.73

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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.