Home / 7,151.28-10,728.16-2,406.98

Finding the Fourth Proportional to 7,151.28, 10,728.16 and 2,406.98

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Solution

The fourth proportional to 7,151.28, 10,728.16 and 2,406.98 is: 3,610.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.28 : 10,728.16 = 2,406.98 : x
  2. Step 2: Convert to fraction form
    7,151.28/10,728.16 = 2,406.98/x
  3. Step 3: Cross multiply
    7,151.28x = 10,728.16 × 2,406.98
  4. Step 4: Simplify right side
    7,151.28x = 25,822,508.30
  5. Step 5: Solve for x
    x = 25,822,508.30/7,151.28
  6. Step 6: Final answer
    x = 3,610.89

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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.