Home / 3,948.21-5,447.66-2,376.81

Finding the Fourth Proportional to 3,948.21, 5,447.66 and 2,376.81

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Solution

The fourth proportional to 3,948.21, 5,447.66 and 2,376.81 is: 3,279.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.21 : 5,447.66 = 2,376.81 : x
  2. Step 2: Convert to fraction form
    3,948.21/5,447.66 = 2,376.81/x
  3. Step 3: Cross multiply
    3,948.21x = 5,447.66 × 2,376.81
  4. Step 4: Simplify right side
    3,948.21x = 12,948,040.88
  5. Step 5: Solve for x
    x = 12,948,040.88/3,948.21
  6. Step 6: Final answer
    x = 3,279.47

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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.