Home / 2,285.92-3,154.56-1,238

Finding the Fourth Proportional to 2,285.92, 3,154.56 and 1,238

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Solution

The fourth proportional to 2,285.92, 3,154.56 and 1,238 is: 1,708.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.92 : 3,154.56 = 1,238 : x
  2. Step 2: Convert to fraction form
    2,285.92/3,154.56 = 1,238/x
  3. Step 3: Cross multiply
    2,285.92x = 3,154.56 × 1,238
  4. Step 4: Simplify right side
    2,285.92x = 3,905,345.28
  5. Step 5: Solve for x
    x = 3,905,345.28/2,285.92
  6. Step 6: Final answer
    x = 1,708.43

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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.