Home / 3,131.24-4,691.07-2,715.71

Finding the Fourth Proportional to 3,131.24, 4,691.07 and 2,715.71

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Solution

The fourth proportional to 3,131.24, 4,691.07 and 2,715.71 is: 4,068.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.24 : 4,691.07 = 2,715.71 : x
  2. Step 2: Convert to fraction form
    3,131.24/4,691.07 = 2,715.71/x
  3. Step 3: Cross multiply
    3,131.24x = 4,691.07 × 2,715.71
  4. Step 4: Simplify right side
    3,131.24x = 12,739,585.71
  5. Step 5: Solve for x
    x = 12,739,585.71/3,131.24
  6. Step 6: Final answer
    x = 4,068.54

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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.