Home / 5,789.46-7,989.47-3,136.85

Finding the Fourth Proportional to 5,789.46, 7,989.47 and 3,136.85

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Solution

The fourth proportional to 5,789.46, 7,989.47 and 3,136.85 is: 4,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789.46 : 7,989.47 = 3,136.85 : x
  2. Step 2: Convert to fraction form
    5,789.46/7,989.47 = 3,136.85/x
  3. Step 3: Cross multiply
    5,789.46x = 7,989.47 × 3,136.85
  4. Step 4: Simplify right side
    5,789.46x = 25,061,768.97
  5. Step 5: Solve for x
    x = 25,061,768.97/5,789.46
  6. Step 6: Final answer
    x = 4,328.86

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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.