Home / 2,238.75-3,089.63-1,294.73

Finding the Fourth Proportional to 2,238.75, 3,089.63 and 1,294.73

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Solution

The fourth proportional to 2,238.75, 3,089.63 and 1,294.73 is: 1,786.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.75 : 3,089.63 = 1,294.73 : x
  2. Step 2: Convert to fraction form
    2,238.75/3,089.63 = 1,294.73/x
  3. Step 3: Cross multiply
    2,238.75x = 3,089.63 × 1,294.73
  4. Step 4: Simplify right side
    2,238.75x = 4,000,236.65
  5. Step 5: Solve for x
    x = 4,000,236.65/2,238.75
  6. Step 6: Final answer
    x = 1,786.82

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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.