Home / 3,129.47-4,295.66-2,767.46

Finding the Fourth Proportional to 3,129.47, 4,295.66 and 2,767.46

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Solution

The fourth proportional to 3,129.47, 4,295.66 and 2,767.46 is: 3,798.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.47 : 4,295.66 = 2,767.46 : x
  2. Step 2: Convert to fraction form
    3,129.47/4,295.66 = 2,767.46/x
  3. Step 3: Cross multiply
    3,129.47x = 4,295.66 × 2,767.46
  4. Step 4: Simplify right side
    3,129.47x = 11,888,067.22
  5. Step 5: Solve for x
    x = 11,888,067.22/3,129.47
  6. Step 6: Final answer
    x = 3,798.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.