Home / 3,470.97-4,789.93-1,979.36

Finding the Fourth Proportional to 3,470.97, 4,789.93 and 1,979.36

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Solution

The fourth proportional to 3,470.97, 4,789.93 and 1,979.36 is: 2,731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.97 : 4,789.93 = 1,979.36 : x
  2. Step 2: Convert to fraction form
    3,470.97/4,789.93 = 1,979.36/x
  3. Step 3: Cross multiply
    3,470.97x = 4,789.93 × 1,979.36
  4. Step 4: Simplify right side
    3,470.97x = 9,480,995.84
  5. Step 5: Solve for x
    x = 9,480,995.84/3,470.97
  6. Step 6: Final answer
    x = 2,731.51

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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.