Home / 3,258.13-4,493.26-2,138.65

Finding the Fourth Proportional to 3,258.13, 4,493.26 and 2,138.65

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Solution

The fourth proportional to 3,258.13, 4,493.26 and 2,138.65 is: 2,949.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258.13 : 4,493.26 = 2,138.65 : x
  2. Step 2: Convert to fraction form
    3,258.13/4,493.26 = 2,138.65/x
  3. Step 3: Cross multiply
    3,258.13x = 4,493.26 × 2,138.65
  4. Step 4: Simplify right side
    3,258.13x = 9,609,510.50
  5. Step 5: Solve for x
    x = 9,609,510.50/3,258.13
  6. Step 6: Final answer
    x = 2,949.39

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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.