Home / 2,186.61-3,017.41-1,191.79

Finding the Fourth Proportional to 2,186.61, 3,017.41 and 1,191.79

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Solution

The fourth proportional to 2,186.61, 3,017.41 and 1,191.79 is: 1,644.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.61 : 3,017.41 = 1,191.79 : x
  2. Step 2: Convert to fraction form
    2,186.61/3,017.41 = 1,191.79/x
  3. Step 3: Cross multiply
    2,186.61x = 3,017.41 × 1,191.79
  4. Step 4: Simplify right side
    2,186.61x = 3,596,119.06
  5. Step 5: Solve for x
    x = 3,596,119.06/2,186.61
  6. Step 6: Final answer
    x = 1,644.61

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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.