Home / 5,644.80-7,789.23-3,126.85

Finding the Fourth Proportional to 5,644.80, 7,789.23 and 3,126.85

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Solution

The fourth proportional to 5,644.80, 7,789.23 and 3,126.85 is: 4,314.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644.80 : 7,789.23 = 3,126.85 : x
  2. Step 2: Convert to fraction form
    5,644.80/7,789.23 = 3,126.85/x
  3. Step 3: Cross multiply
    5,644.80x = 7,789.23 × 3,126.85
  4. Step 4: Simplify right side
    5,644.80x = 24,355,753.83
  5. Step 5: Solve for x
    x = 24,355,753.83/5,644.80
  6. Step 6: Final answer
    x = 4,314.72

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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.