Home / 2,238.38-3,089.08-1,243.76

Finding the Fourth Proportional to 2,238.38, 3,089.08 and 1,243.76

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Solution

The fourth proportional to 2,238.38, 3,089.08 and 1,243.76 is: 1,716.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.38 : 3,089.08 = 1,243.76 : x
  2. Step 2: Convert to fraction form
    2,238.38/3,089.08 = 1,243.76/x
  3. Step 3: Cross multiply
    2,238.38x = 3,089.08 × 1,243.76
  4. Step 4: Simplify right side
    2,238.38x = 3,842,074.14
  5. Step 5: Solve for x
    x = 3,842,074.14/2,238.38
  6. Step 6: Final answer
    x = 1,716.45

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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.