Home / 3,572.78-4,930.41-2,001.20

Finding the Fourth Proportional to 3,572.78, 4,930.41 and 2,001.20

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Solution

The fourth proportional to 3,572.78, 4,930.41 and 2,001.20 is: 2,761.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.78 : 4,930.41 = 2,001.20 : x
  2. Step 2: Convert to fraction form
    3,572.78/4,930.41 = 2,001.20/x
  3. Step 3: Cross multiply
    3,572.78x = 4,930.41 × 2,001.20
  4. Step 4: Simplify right side
    3,572.78x = 9,866,736.49
  5. Step 5: Solve for x
    x = 9,866,736.49/3,572.78
  6. Step 6: Final answer
    x = 2,761.64

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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.