Home / 5,686.56-7,847.44-3,168.76

Finding the Fourth Proportional to 5,686.56, 7,847.44 and 3,168.76

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Solution

The fourth proportional to 5,686.56, 7,847.44 and 3,168.76 is: 4,372.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.56 : 7,847.44 = 3,168.76 : x
  2. Step 2: Convert to fraction form
    5,686.56/7,847.44 = 3,168.76/x
  3. Step 3: Cross multiply
    5,686.56x = 7,847.44 × 3,168.76
  4. Step 4: Simplify right side
    5,686.56x = 24,866,653.97
  5. Step 5: Solve for x
    x = 24,866,653.97/5,686.56
  6. Step 6: Final answer
    x = 4,372.88

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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.