Home / 3,179.27-4,387.19-1,762.85

Finding the Fourth Proportional to 3,179.27, 4,387.19 and 1,762.85

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Solution

The fourth proportional to 3,179.27, 4,387.19 and 1,762.85 is: 2,432.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.27 : 4,387.19 = 1,762.85 : x
  2. Step 2: Convert to fraction form
    3,179.27/4,387.19 = 1,762.85/x
  3. Step 3: Cross multiply
    3,179.27x = 4,387.19 × 1,762.85
  4. Step 4: Simplify right side
    3,179.27x = 7,733,927.14
  5. Step 5: Solve for x
    x = 7,733,927.14/3,179.27
  6. Step 6: Final answer
    x = 2,432.61

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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.