Home / 3,997.12-5,990.10-2,045.20

Finding the Fourth Proportional to 3,997.12, 5,990.10 and 2,045.20

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Solution

The fourth proportional to 3,997.12, 5,990.10 and 2,045.20 is: 3,064.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.12 : 5,990.10 = 2,045.20 : x
  2. Step 2: Convert to fraction form
    3,997.12/5,990.10 = 2,045.20/x
  3. Step 3: Cross multiply
    3,997.12x = 5,990.10 × 2,045.20
  4. Step 4: Simplify right side
    3,997.12x = 12,250,952.52
  5. Step 5: Solve for x
    x = 12,250,952.52/3,997.12
  6. Step 6: Final answer
    x = 3,064.94

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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.