Home / 2,181.38-3,010.33-1,186.66

Finding the Fourth Proportional to 2,181.38, 3,010.33 and 1,186.66

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Solution

The fourth proportional to 2,181.38, 3,010.33 and 1,186.66 is: 1,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.38 : 3,010.33 = 1,186.66 : x
  2. Step 2: Convert to fraction form
    2,181.38/3,010.33 = 1,186.66/x
  3. Step 3: Cross multiply
    2,181.38x = 3,010.33 × 1,186.66
  4. Step 4: Simplify right side
    2,181.38x = 3,572,238.20
  5. Step 5: Solve for x
    x = 3,572,238.20/2,181.38
  6. Step 6: Final answer
    x = 1,637.60

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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.