Home / 4,042.61-5,578.76-2,274.22

Finding the Fourth Proportional to 4,042.61, 5,578.76 and 2,274.22

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Solution

The fourth proportional to 4,042.61, 5,578.76 and 2,274.22 is: 3,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,042.61 : 5,578.76 = 2,274.22 : x
  2. Step 2: Convert to fraction form
    4,042.61/5,578.76 = 2,274.22/x
  3. Step 3: Cross multiply
    4,042.61x = 5,578.76 × 2,274.22
  4. Step 4: Simplify right side
    4,042.61x = 12,687,316.20
  5. Step 5: Solve for x
    x = 12,687,316.20/4,042.61
  6. Step 6: Final answer
    x = 3,138.40

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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.