Home / 2,221.62-3,312.26-2,057.46

Finding the Fourth Proportional to 2,221.62, 3,312.26 and 2,057.46

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Solution

The fourth proportional to 2,221.62, 3,312.26 and 2,057.46 is: 3,067.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.62 : 3,312.26 = 2,057.46 : x
  2. Step 2: Convert to fraction form
    2,221.62/3,312.26 = 2,057.46/x
  3. Step 3: Cross multiply
    2,221.62x = 3,312.26 × 2,057.46
  4. Step 4: Simplify right side
    2,221.62x = 6,814,832.17
  5. Step 5: Solve for x
    x = 6,814,832.17/2,221.62
  6. Step 6: Final answer
    x = 3,067.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.