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Finding the Fourth Proportional to 3,990.56, 5,995.02 and 2,514.40

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Solution

The fourth proportional to 3,990.56, 5,995.02 and 2,514.40 is: 3,777.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.56 : 5,995.02 = 2,514.40 : x
  2. Step 2: Convert to fraction form
    3,990.56/5,995.02 = 2,514.40/x
  3. Step 3: Cross multiply
    3,990.56x = 5,995.02 × 2,514.40
  4. Step 4: Simplify right side
    3,990.56x = 15,073,878.29
  5. Step 5: Solve for x
    x = 15,073,878.29/3,990.56
  6. Step 6: Final answer
    x = 3,777.38

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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.