Home / 3,911.39-5,397.81-2,232.66

Finding the Fourth Proportional to 3,911.39, 5,397.81 and 2,232.66

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Solution

The fourth proportional to 3,911.39, 5,397.81 and 2,232.66 is: 3,081.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.39 : 5,397.81 = 2,232.66 : x
  2. Step 2: Convert to fraction form
    3,911.39/5,397.81 = 2,232.66/x
  3. Step 3: Cross multiply
    3,911.39x = 5,397.81 × 2,232.66
  4. Step 4: Simplify right side
    3,911.39x = 12,051,486.34
  5. Step 5: Solve for x
    x = 12,051,486.34/3,911.39
  6. Step 6: Final answer
    x = 3,081.13

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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.