Home / 5,687.15-8,520.33-4,123.28

Finding the Fourth Proportional to 5,687.15, 8,520.33 and 4,123.28

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Solution

The fourth proportional to 5,687.15, 8,520.33 and 4,123.28 is: 6,177.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.15 : 8,520.33 = 4,123.28 : x
  2. Step 2: Convert to fraction form
    5,687.15/8,520.33 = 4,123.28/x
  3. Step 3: Cross multiply
    5,687.15x = 8,520.33 × 4,123.28
  4. Step 4: Simplify right side
    5,687.15x = 35,131,706.28
  5. Step 5: Solve for x
    x = 35,131,706.28/5,687.15
  6. Step 6: Final answer
    x = 6,177.38

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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.