Home / 6,747.28-10,123.80-3,821.20

Finding the Fourth Proportional to 6,747.28, 10,123.80 and 3,821.20

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Solution

The fourth proportional to 6,747.28, 10,123.80 and 3,821.20 is: 5,733.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,747.28 : 10,123.80 = 3,821.20 : x
  2. Step 2: Convert to fraction form
    6,747.28/10,123.80 = 3,821.20/x
  3. Step 3: Cross multiply
    6,747.28x = 10,123.80 × 3,821.20
  4. Step 4: Simplify right side
    6,747.28x = 38,685,064.56
  5. Step 5: Solve for x
    x = 38,685,064.56/6,747.28
  6. Step 6: Final answer
    x = 5,733.43

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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.