Home / 3,989.68-5,985.72-1,524.56

Finding the Fourth Proportional to 3,989.68, 5,985.72 and 1,524.56

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Solution

The fourth proportional to 3,989.68, 5,985.72 and 1,524.56 is: 2,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.68 : 5,985.72 = 1,524.56 : x
  2. Step 2: Convert to fraction form
    3,989.68/5,985.72 = 1,524.56/x
  3. Step 3: Cross multiply
    3,989.68x = 5,985.72 × 1,524.56
  4. Step 4: Simplify right side
    3,989.68x = 9,125,589.28
  5. Step 5: Solve for x
    x = 9,125,589.28/3,989.68
  6. Step 6: Final answer
    x = 2,287.30

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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.