Home / 4,221.20-5,857.06-4,100.24

Finding the Fourth Proportional to 4,221.20, 5,857.06 and 4,100.24

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Solution

The fourth proportional to 4,221.20, 5,857.06 and 4,100.24 is: 5,689.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.20 : 5,857.06 = 4,100.24 : x
  2. Step 2: Convert to fraction form
    4,221.20/5,857.06 = 4,100.24/x
  3. Step 3: Cross multiply
    4,221.20x = 5,857.06 × 4,100.24
  4. Step 4: Simplify right side
    4,221.20x = 24,015,351.69
  5. Step 5: Solve for x
    x = 24,015,351.69/4,221.20
  6. Step 6: Final answer
    x = 5,689.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.