Home / 2,138.10-2,949.88-1,193.73

Finding the Fourth Proportional to 2,138.10, 2,949.88 and 1,193.73

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Solution

The fourth proportional to 2,138.10, 2,949.88 and 1,193.73 is: 1,646.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.10 : 2,949.88 = 1,193.73 : x
  2. Step 2: Convert to fraction form
    2,138.10/2,949.88 = 1,193.73/x
  3. Step 3: Cross multiply
    2,138.10x = 2,949.88 × 1,193.73
  4. Step 4: Simplify right side
    2,138.10x = 3,521,360.25
  5. Step 5: Solve for x
    x = 3,521,360.25/2,138.10
  6. Step 6: Final answer
    x = 1,646.96

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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.