Home / 3,148.11-4,344.35-1,821.78

Finding the Fourth Proportional to 3,148.11, 4,344.35 and 1,821.78

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Solution

The fourth proportional to 3,148.11, 4,344.35 and 1,821.78 is: 2,514.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.11 : 4,344.35 = 1,821.78 : x
  2. Step 2: Convert to fraction form
    3,148.11/4,344.35 = 1,821.78/x
  3. Step 3: Cross multiply
    3,148.11x = 4,344.35 × 1,821.78
  4. Step 4: Simplify right side
    3,148.11x = 7,914,440.83
  5. Step 5: Solve for x
    x = 7,914,440.83/3,148.11
  6. Step 6: Final answer
    x = 2,514.03

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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.