Home / 4,042.22-5,575.76-2,781.10

Finding the Fourth Proportional to 4,042.22, 5,575.76 and 2,781.10

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Solution

The fourth proportional to 4,042.22, 5,575.76 and 2,781.10 is: 3,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,042.22 : 5,575.76 = 2,781.10 : x
  2. Step 2: Convert to fraction form
    4,042.22/5,575.76 = 2,781.10/x
  3. Step 3: Cross multiply
    4,042.22x = 5,575.76 × 2,781.10
  4. Step 4: Simplify right side
    4,042.22x = 15,506,746.14
  5. Step 5: Solve for x
    x = 15,506,746.14/4,042.22
  6. Step 6: Final answer
    x = 3,836.20

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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.