Home / 4,251.06-5,867.78-2,680.20

Finding the Fourth Proportional to 4,251.06, 5,867.78 and 2,680.20

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Solution

The fourth proportional to 4,251.06, 5,867.78 and 2,680.20 is: 3,699.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.06 : 5,867.78 = 2,680.20 : x
  2. Step 2: Convert to fraction form
    4,251.06/5,867.78 = 2,680.20/x
  3. Step 3: Cross multiply
    4,251.06x = 5,867.78 × 2,680.20
  4. Step 4: Simplify right side
    4,251.06x = 15,726,810.56
  5. Step 5: Solve for x
    x = 15,726,810.56/4,251.06
  6. Step 6: Final answer
    x = 3,699.50

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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.