Home / 3,781.32-5,217.92-2,102.63

Finding the Fourth Proportional to 3,781.32, 5,217.92 and 2,102.63

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Solution

The fourth proportional to 3,781.32, 5,217.92 and 2,102.63 is: 2,901.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.32 : 5,217.92 = 2,102.63 : x
  2. Step 2: Convert to fraction form
    3,781.32/5,217.92 = 2,102.63/x
  3. Step 3: Cross multiply
    3,781.32x = 5,217.92 × 2,102.63
  4. Step 4: Simplify right side
    3,781.32x = 10,971,326.41
  5. Step 5: Solve for x
    x = 10,971,326.41/3,781.32
  6. Step 6: Final answer
    x = 2,901.46

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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.