Home / 5,162.28-7,115.70-3,953.76

Finding the Fourth Proportional to 5,162.28, 7,115.70 and 3,953.76

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Solution

The fourth proportional to 5,162.28, 7,115.70 and 3,953.76 is: 5,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,162.28 : 7,115.70 = 3,953.76 : x
  2. Step 2: Convert to fraction form
    5,162.28/7,115.70 = 3,953.76/x
  3. Step 3: Cross multiply
    5,162.28x = 7,115.70 × 3,953.76
  4. Step 4: Simplify right side
    5,162.28x = 28,133,770.03
  5. Step 5: Solve for x
    x = 28,133,770.03/5,162.28
  6. Step 6: Final answer
    x = 5,449.87

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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.