Home / 2,186.39-3,017.17-1,191.71

Finding the Fourth Proportional to 2,186.39, 3,017.17 and 1,191.71

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Solution

The fourth proportional to 2,186.39, 3,017.17 and 1,191.71 is: 1,644.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.39 : 3,017.17 = 1,191.71 : x
  2. Step 2: Convert to fraction form
    2,186.39/3,017.17 = 1,191.71/x
  3. Step 3: Cross multiply
    2,186.39x = 3,017.17 × 1,191.71
  4. Step 4: Simplify right side
    2,186.39x = 3,595,591.66
  5. Step 5: Solve for x
    x = 3,595,591.66/2,186.39
  6. Step 6: Final answer
    x = 1,644.53

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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.