Home / 2,331.11-3,512.72-1,929.28

Finding the Fourth Proportional to 2,331.11, 3,512.72 and 1,929.28

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Solution

The fourth proportional to 2,331.11, 3,512.72 and 1,929.28 is: 2,907.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.11 : 3,512.72 = 1,929.28 : x
  2. Step 2: Convert to fraction form
    2,331.11/3,512.72 = 1,929.28/x
  3. Step 3: Cross multiply
    2,331.11x = 3,512.72 × 1,929.28
  4. Step 4: Simplify right side
    2,331.11x = 6,777,020.44
  5. Step 5: Solve for x
    x = 6,777,020.44/2,331.11
  6. Step 6: Final answer
    x = 2,907.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.