Home / 3,143.27-4,715.92-1,499.60

Finding the Fourth Proportional to 3,143.27, 4,715.92 and 1,499.60

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Solution

The fourth proportional to 3,143.27, 4,715.92 and 1,499.60 is: 2,249.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.27 : 4,715.92 = 1,499.60 : x
  2. Step 2: Convert to fraction form
    3,143.27/4,715.92 = 1,499.60/x
  3. Step 3: Cross multiply
    3,143.27x = 4,715.92 × 1,499.60
  4. Step 4: Simplify right side
    3,143.27x = 7,071,989.61
  5. Step 5: Solve for x
    x = 7,071,989.61/3,143.27
  6. Step 6: Final answer
    x = 2,249.89

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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.