Home / 2,202.12-3,287.43-2,125.17

Finding the Fourth Proportional to 2,202.12, 3,287.43 and 2,125.17

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Solution

The fourth proportional to 2,202.12, 3,287.43 and 2,125.17 is: 3,172.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.12 : 3,287.43 = 2,125.17 : x
  2. Step 2: Convert to fraction form
    2,202.12/3,287.43 = 2,125.17/x
  3. Step 3: Cross multiply
    2,202.12x = 3,287.43 × 2,125.17
  4. Step 4: Simplify right side
    2,202.12x = 6,986,347.61
  5. Step 5: Solve for x
    x = 6,986,347.61/2,202.12
  6. Step 6: Final answer
    x = 3,172.56

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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.