Home / 3,123.76-4,311.39-2,059.66

Finding the Fourth Proportional to 3,123.76, 4,311.39 and 2,059.66

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Solution

The fourth proportional to 3,123.76, 4,311.39 and 2,059.66 is: 2,842.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.76 : 4,311.39 = 2,059.66 : x
  2. Step 2: Convert to fraction form
    3,123.76/4,311.39 = 2,059.66/x
  3. Step 3: Cross multiply
    3,123.76x = 4,311.39 × 2,059.66
  4. Step 4: Simplify right side
    3,123.76x = 8,879,997.53
  5. Step 5: Solve for x
    x = 8,879,997.53/3,123.76
  6. Step 6: Final answer
    x = 2,842.73

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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.