Home / 3,930.66-5,424.33-2,438.02

Finding the Fourth Proportional to 3,930.66, 5,424.33 and 2,438.02

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Solution

The fourth proportional to 3,930.66, 5,424.33 and 2,438.02 is: 3,364.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.66 : 5,424.33 = 2,438.02 : x
  2. Step 2: Convert to fraction form
    3,930.66/5,424.33 = 2,438.02/x
  3. Step 3: Cross multiply
    3,930.66x = 5,424.33 × 2,438.02
  4. Step 4: Simplify right side
    3,930.66x = 13,224,625.03
  5. Step 5: Solve for x
    x = 13,224,625.03/3,930.66
  6. Step 6: Final answer
    x = 3,364.48

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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.