Home / 3,538.12-4,881.18-2,138.44

Finding the Fourth Proportional to 3,538.12, 4,881.18 and 2,138.44

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Solution

The fourth proportional to 3,538.12, 4,881.18 and 2,138.44 is: 2,950.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.12 : 4,881.18 = 2,138.44 : x
  2. Step 2: Convert to fraction form
    3,538.12/4,881.18 = 2,138.44/x
  3. Step 3: Cross multiply
    3,538.12x = 4,881.18 × 2,138.44
  4. Step 4: Simplify right side
    3,538.12x = 10,438,110.56
  5. Step 5: Solve for x
    x = 10,438,110.56/3,538.12
  6. Step 6: Final answer
    x = 2,950.19

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1.5x scale

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.