Home / 2,169.25-2,994.11-1,238.29

Finding the Fourth Proportional to 2,169.25, 2,994.11 and 1,238.29

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Solution

The fourth proportional to 2,169.25, 2,994.11 and 1,238.29 is: 1,709.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.25 : 2,994.11 = 1,238.29 : x
  2. Step 2: Convert to fraction form
    2,169.25/2,994.11 = 1,238.29/x
  3. Step 3: Cross multiply
    2,169.25x = 2,994.11 × 1,238.29
  4. Step 4: Simplify right side
    2,169.25x = 3,707,570.28
  5. Step 5: Solve for x
    x = 3,707,570.28/2,169.25
  6. Step 6: Final answer
    x = 1,709.15

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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.