Home / 3,049.12-4,206.24-1,928.17

Finding the Fourth Proportional to 3,049.12, 4,206.24 and 1,928.17

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Solution

The fourth proportional to 3,049.12, 4,206.24 and 1,928.17 is: 2,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.12 : 4,206.24 = 1,928.17 : x
  2. Step 2: Convert to fraction form
    3,049.12/4,206.24 = 1,928.17/x
  3. Step 3: Cross multiply
    3,049.12x = 4,206.24 × 1,928.17
  4. Step 4: Simplify right side
    3,049.12x = 8,110,345.78
  5. Step 5: Solve for x
    x = 8,110,345.78/3,049.12
  6. Step 6: Final answer
    x = 2,659.90

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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.