Home / 4,189.12-5,781.02-2,618.14

Finding the Fourth Proportional to 4,189.12, 5,781.02 and 2,618.14

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Solution

The fourth proportional to 4,189.12, 5,781.02 and 2,618.14 is: 3,613.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.12 : 5,781.02 = 2,618.14 : x
  2. Step 2: Convert to fraction form
    4,189.12/5,781.02 = 2,618.14/x
  3. Step 3: Cross multiply
    4,189.12x = 5,781.02 × 2,618.14
  4. Step 4: Simplify right side
    4,189.12x = 15,135,519.70
  5. Step 5: Solve for x
    x = 15,135,519.70/4,189.12
  6. Step 6: Final answer
    x = 3,613.05

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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.