Home / 2,186.08-3,016.80-1,191.38

Finding the Fourth Proportional to 2,186.08, 3,016.80 and 1,191.38

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Solution

The fourth proportional to 2,186.08, 3,016.80 and 1,191.38 is: 1,644.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.08 : 3,016.80 = 1,191.38 : x
  2. Step 2: Convert to fraction form
    2,186.08/3,016.80 = 1,191.38/x
  3. Step 3: Cross multiply
    2,186.08x = 3,016.80 × 1,191.38
  4. Step 4: Simplify right side
    2,186.08x = 3,594,151.41
  5. Step 5: Solve for x
    x = 3,594,151.41/2,186.08
  6. Step 6: Final answer
    x = 1,644.11

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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.