Home / 3,371.79-5,027.97-3,138.12

Finding the Fourth Proportional to 3,371.79, 5,027.97 and 3,138.12

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Solution

The fourth proportional to 3,371.79, 5,027.97 and 3,138.12 is: 4,679.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,371.79 : 5,027.97 = 3,138.12 : x
  2. Step 2: Convert to fraction form
    3,371.79/5,027.97 = 3,138.12/x
  3. Step 3: Cross multiply
    3,371.79x = 5,027.97 × 3,138.12
  4. Step 4: Simplify right side
    3,371.79x = 15,778,373.22
  5. Step 5: Solve for x
    x = 15,778,373.22/3,371.79
  6. Step 6: Final answer
    x = 4,679.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.