Home / 5,642.28-8,464.80-3,979.66

Finding the Fourth Proportional to 5,642.28, 8,464.80 and 3,979.66

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Solution

The fourth proportional to 5,642.28, 8,464.80 and 3,979.66 is: 5,970.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642.28 : 8,464.80 = 3,979.66 : x
  2. Step 2: Convert to fraction form
    5,642.28/8,464.80 = 3,979.66/x
  3. Step 3: Cross multiply
    5,642.28x = 8,464.80 × 3,979.66
  4. Step 4: Simplify right side
    5,642.28x = 33,687,025.97
  5. Step 5: Solve for x
    x = 33,687,025.97/5,642.28
  6. Step 6: Final answer
    x = 5,970.46

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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.