Home / 2,742.22-4,128.50-1,882.18

Finding the Fourth Proportional to 2,742.22, 4,128.50 and 1,882.18

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Solution

The fourth proportional to 2,742.22, 4,128.50 and 1,882.18 is: 2,833.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.22 : 4,128.50 = 1,882.18 : x
  2. Step 2: Convert to fraction form
    2,742.22/4,128.50 = 1,882.18/x
  3. Step 3: Cross multiply
    2,742.22x = 4,128.50 × 1,882.18
  4. Step 4: Simplify right side
    2,742.22x = 7,770,580.13
  5. Step 5: Solve for x
    x = 7,770,580.13/2,742.22
  6. Step 6: Final answer
    x = 2,833.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.