Home / 4,468.80-6,704.40-3,985.20

Finding the Fourth Proportional to 4,468.80, 6,704.40 and 3,985.20

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Solution

The fourth proportional to 4,468.80, 6,704.40 and 3,985.20 is: 5,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,468.80 : 6,704.40 = 3,985.20 : x
  2. Step 2: Convert to fraction form
    4,468.80/6,704.40 = 3,985.20/x
  3. Step 3: Cross multiply
    4,468.80x = 6,704.40 × 3,985.20
  4. Step 4: Simplify right side
    4,468.80x = 26,718,374.88
  5. Step 5: Solve for x
    x = 26,718,374.88/4,468.80
  6. Step 6: Final answer
    x = 5,978.87

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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.