Home / 5,399.12-7,447.56-3,982.35

Finding the Fourth Proportional to 5,399.12, 7,447.56 and 3,982.35

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Solution

The fourth proportional to 5,399.12, 7,447.56 and 3,982.35 is: 5,493.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.12 : 7,447.56 = 3,982.35 : x
  2. Step 2: Convert to fraction form
    5,399.12/7,447.56 = 3,982.35/x
  3. Step 3: Cross multiply
    5,399.12x = 7,447.56 × 3,982.35
  4. Step 4: Simplify right side
    5,399.12x = 29,658,770.65
  5. Step 5: Solve for x
    x = 29,658,770.65/5,399.12
  6. Step 6: Final answer
    x = 5,493.27

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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.