Home / 4,042.62-5,578.77-2,274.39

Finding the Fourth Proportional to 4,042.62, 5,578.77 and 2,274.39

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Solution

The fourth proportional to 4,042.62, 5,578.77 and 2,274.39 is: 3,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,042.62 : 5,578.77 = 2,274.39 : x
  2. Step 2: Convert to fraction form
    4,042.62/5,578.77 = 2,274.39/x
  3. Step 3: Cross multiply
    4,042.62x = 5,578.77 × 2,274.39
  4. Step 4: Simplify right side
    4,042.62x = 12,688,298.70
  5. Step 5: Solve for x
    x = 12,688,298.70/4,042.62
  6. Step 6: Final answer
    x = 3,138.63

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Half scale
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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.