Home / 3,422.97-4,723.68-1,930.56

Finding the Fourth Proportional to 3,422.97, 4,723.68 and 1,930.56

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Solution

The fourth proportional to 3,422.97, 4,723.68 and 1,930.56 is: 2,664.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.97 : 4,723.68 = 1,930.56 : x
  2. Step 2: Convert to fraction form
    3,422.97/4,723.68 = 1,930.56/x
  3. Step 3: Cross multiply
    3,422.97x = 4,723.68 × 1,930.56
  4. Step 4: Simplify right side
    3,422.97x = 9,119,347.66
  5. Step 5: Solve for x
    x = 9,119,347.66/3,422.97
  6. Step 6: Final answer
    x = 2,664.16

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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.