Home / 2,238.60-3,089.14-1,243.85

Finding the Fourth Proportional to 2,238.60, 3,089.14 and 1,243.85

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Solution

The fourth proportional to 2,238.60, 3,089.14 and 1,243.85 is: 1,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.60 : 3,089.14 = 1,243.85 : x
  2. Step 2: Convert to fraction form
    2,238.60/3,089.14 = 1,243.85/x
  3. Step 3: Cross multiply
    2,238.60x = 3,089.14 × 1,243.85
  4. Step 4: Simplify right side
    2,238.60x = 3,842,416.92
  5. Step 5: Solve for x
    x = 3,842,416.92/2,238.60
  6. Step 6: Final answer
    x = 1,716.43

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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.