Home / 3,931-5,427.44-2,439.52

Finding the Fourth Proportional to 3,931, 5,427.44 and 2,439.52

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Solution

The fourth proportional to 3,931, 5,427.44 and 2,439.52 is: 3,368.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931 : 5,427.44 = 2,439.52 : x
  2. Step 2: Convert to fraction form
    3,931/5,427.44 = 2,439.52/x
  3. Step 3: Cross multiply
    3,931x = 5,427.44 × 2,439.52
  4. Step 4: Simplify right side
    3,931x = 13,240,348.43
  5. Step 5: Solve for x
    x = 13,240,348.43/3,931
  6. Step 6: Final answer
    x = 3,368.19

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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.