Home / 2,202.58-3,286.85-1,957.15

Finding the Fourth Proportional to 2,202.58, 3,286.85 and 1,957.15

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Solution

The fourth proportional to 2,202.58, 3,286.85 and 1,957.15 is: 2,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.58 : 3,286.85 = 1,957.15 : x
  2. Step 2: Convert to fraction form
    2,202.58/3,286.85 = 1,957.15/x
  3. Step 3: Cross multiply
    2,202.58x = 3,286.85 × 1,957.15
  4. Step 4: Simplify right side
    2,202.58x = 6,432,858.48
  5. Step 5: Solve for x
    x = 6,432,858.48/2,202.58
  6. Step 6: Final answer
    x = 2,920.60

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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.