Home / 3,781.28-5,661.48-2,853.98

Finding the Fourth Proportional to 3,781.28, 5,661.48 and 2,853.98

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Solution

The fourth proportional to 3,781.28, 5,661.48 and 2,853.98 is: 4,273.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.28 : 5,661.48 = 2,853.98 : x
  2. Step 2: Convert to fraction form
    3,781.28/5,661.48 = 2,853.98/x
  3. Step 3: Cross multiply
    3,781.28x = 5,661.48 × 2,853.98
  4. Step 4: Simplify right side
    3,781.28x = 16,157,750.69
  5. Step 5: Solve for x
    x = 16,157,750.69/3,781.28
  6. Step 6: Final answer
    x = 4,273.09

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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.