Home / 3,422.97-5,131.26-1,860.66

Finding the Fourth Proportional to 3,422.97, 5,131.26 and 1,860.66

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Solution

The fourth proportional to 3,422.97, 5,131.26 and 1,860.66 is: 2,789.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.97 : 5,131.26 = 1,860.66 : x
  2. Step 2: Convert to fraction form
    3,422.97/5,131.26 = 1,860.66/x
  3. Step 3: Cross multiply
    3,422.97x = 5,131.26 × 1,860.66
  4. Step 4: Simplify right side
    3,422.97x = 9,547,530.23
  5. Step 5: Solve for x
    x = 9,547,530.23/3,422.97
  6. Step 6: Final answer
    x = 2,789.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.