Home / 3,910.89-5,397.12-2,232.39

Finding the Fourth Proportional to 3,910.89, 5,397.12 and 2,232.39

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Solution

The fourth proportional to 3,910.89, 5,397.12 and 2,232.39 is: 3,080.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.89 : 5,397.12 = 2,232.39 : x
  2. Step 2: Convert to fraction form
    3,910.89/5,397.12 = 2,232.39/x
  3. Step 3: Cross multiply
    3,910.89x = 5,397.12 × 2,232.39
  4. Step 4: Simplify right side
    3,910.89x = 12,048,476.72
  5. Step 5: Solve for x
    x = 12,048,476.72/3,910.89
  6. Step 6: Final answer
    x = 3,080.75

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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.