Home / 4,126.37-5,691.21-2,781.48

Finding the Fourth Proportional to 4,126.37, 5,691.21 and 2,781.48

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Solution

The fourth proportional to 4,126.37, 5,691.21 and 2,781.48 is: 3,836.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,126.37 : 5,691.21 = 2,781.48 : x
  2. Step 2: Convert to fraction form
    4,126.37/5,691.21 = 2,781.48/x
  3. Step 3: Cross multiply
    4,126.37x = 5,691.21 × 2,781.48
  4. Step 4: Simplify right side
    4,126.37x = 15,829,973.33
  5. Step 5: Solve for x
    x = 15,829,973.33/4,126.37
  6. Step 6: Final answer
    x = 3,836.30

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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.