Home / 4,499.28-6,175.98-3,990.80

Finding the Fourth Proportional to 4,499.28, 6,175.98 and 3,990.80

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Solution

The fourth proportional to 4,499.28, 6,175.98 and 3,990.80 is: 5,478.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,499.28 : 6,175.98 = 3,990.80 : x
  2. Step 2: Convert to fraction form
    4,499.28/6,175.98 = 3,990.80/x
  3. Step 3: Cross multiply
    4,499.28x = 6,175.98 × 3,990.80
  4. Step 4: Simplify right side
    4,499.28x = 24,647,116.42
  5. Step 5: Solve for x
    x = 24,647,116.42/4,499.28
  6. Step 6: Final answer
    x = 5,478.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.