Home / 2,186.67-3,281.04-1,091.12

Finding the Fourth Proportional to 2,186.67, 3,281.04 and 1,091.12

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Solution

The fourth proportional to 2,186.67, 3,281.04 and 1,091.12 is: 1,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.67 : 3,281.04 = 1,091.12 : x
  2. Step 2: Convert to fraction form
    2,186.67/3,281.04 = 1,091.12/x
  3. Step 3: Cross multiply
    2,186.67x = 3,281.04 × 1,091.12
  4. Step 4: Simplify right side
    2,186.67x = 3,580,012.48
  5. Step 5: Solve for x
    x = 3,580,012.48/2,186.67
  6. Step 6: Final answer
    x = 1,637.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.