Home / 5,228.40-7,850.70-3,997.20

Finding the Fourth Proportional to 5,228.40, 7,850.70 and 3,997.20

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Solution

The fourth proportional to 5,228.40, 7,850.70 and 3,997.20 is: 6,001.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.40 : 7,850.70 = 3,997.20 : x
  2. Step 2: Convert to fraction form
    5,228.40/7,850.70 = 3,997.20/x
  3. Step 3: Cross multiply
    5,228.40x = 7,850.70 × 3,997.20
  4. Step 4: Simplify right side
    5,228.40x = 31,380,818.04
  5. Step 5: Solve for x
    x = 31,380,818.04/5,228.40
  6. Step 6: Final answer
    x = 6,001.99

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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.