Home / 2,081.32-2,872.20-1,197.08

Finding the Fourth Proportional to 2,081.32, 2,872.20 and 1,197.08

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Solution

The fourth proportional to 2,081.32, 2,872.20 and 1,197.08 is: 1,651.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.32 : 2,872.20 = 1,197.08 : x
  2. Step 2: Convert to fraction form
    2,081.32/2,872.20 = 1,197.08/x
  3. Step 3: Cross multiply
    2,081.32x = 2,872.20 × 1,197.08
  4. Step 4: Simplify right side
    2,081.32x = 3,438,253.18
  5. Step 5: Solve for x
    x = 3,438,253.18/2,081.32
  6. Step 6: Final answer
    x = 1,651.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.