Home / 4,042.20-5,578.56-2,273.70

Finding the Fourth Proportional to 4,042.20, 5,578.56 and 2,273.70

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Solution

The fourth proportional to 4,042.20, 5,578.56 and 2,273.70 is: 3,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,042.20 : 5,578.56 = 2,273.70 : x
  2. Step 2: Convert to fraction form
    4,042.20/5,578.56 = 2,273.70/x
  3. Step 3: Cross multiply
    4,042.20x = 5,578.56 × 2,273.70
  4. Step 4: Simplify right side
    4,042.20x = 12,683,971.87
  5. Step 5: Solve for x
    x = 12,683,971.87/4,042.20
  6. Step 6: Final answer
    x = 3,137.89

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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.