Home / 3,040.39-4,195.49-1,781.28

Finding the Fourth Proportional to 3,040.39, 4,195.49 and 1,781.28

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Solution

The fourth proportional to 3,040.39, 4,195.49 and 1,781.28 is: 2,458.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.39 : 4,195.49 = 1,781.28 : x
  2. Step 2: Convert to fraction form
    3,040.39/4,195.49 = 1,781.28/x
  3. Step 3: Cross multiply
    3,040.39x = 4,195.49 × 1,781.28
  4. Step 4: Simplify right side
    3,040.39x = 7,473,342.43
  5. Step 5: Solve for x
    x = 7,473,342.43/3,040.39
  6. Step 6: Final answer
    x = 2,458.02

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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.