Home / 2,202.40-3,282.15-2,135.66

Finding the Fourth Proportional to 2,202.40, 3,282.15 and 2,135.66

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Solution

The fourth proportional to 2,202.40, 3,282.15 and 2,135.66 is: 3,182.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.40 : 3,282.15 = 2,135.66 : x
  2. Step 2: Convert to fraction form
    2,202.40/3,282.15 = 2,135.66/x
  3. Step 3: Cross multiply
    2,202.40x = 3,282.15 × 2,135.66
  4. Step 4: Simplify right side
    2,202.40x = 7,009,548.07
  5. Step 5: Solve for x
    x = 7,009,548.07/2,202.40
  6. Step 6: Final answer
    x = 3,182.68

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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.