Home / 2,746.28-3,789.92-1,628.08

Finding the Fourth Proportional to 2,746.28, 3,789.92 and 1,628.08

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Solution

The fourth proportional to 2,746.28, 3,789.92 and 1,628.08 is: 2,246.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,746.28 : 3,789.92 = 1,628.08 : x
  2. Step 2: Convert to fraction form
    2,746.28/3,789.92 = 1,628.08/x
  3. Step 3: Cross multiply
    2,746.28x = 3,789.92 × 1,628.08
  4. Step 4: Simplify right side
    2,746.28x = 6,170,292.95
  5. Step 5: Solve for x
    x = 6,170,292.95/2,746.28
  6. Step 6: Final answer
    x = 2,246.78

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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.