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Finding the Fourth Proportional to 3,997.95, 5,995.71 and 1,400.28

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Solution

The fourth proportional to 3,997.95, 5,995.71 and 1,400.28 is: 2,099.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.95 : 5,995.71 = 1,400.28 : x
  2. Step 2: Convert to fraction form
    3,997.95/5,995.71 = 1,400.28/x
  3. Step 3: Cross multiply
    3,997.95x = 5,995.71 × 1,400.28
  4. Step 4: Simplify right side
    3,997.95x = 8,395,672.80
  5. Step 5: Solve for x
    x = 8,395,672.80/3,997.95
  6. Step 6: Final answer
    x = 2,099.99

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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.