Home / 3,154.78-4,353.55-1,738.61

Finding the Fourth Proportional to 3,154.78, 4,353.55 and 1,738.61

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Solution

The fourth proportional to 3,154.78, 4,353.55 and 1,738.61 is: 2,399.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.78 : 4,353.55 = 1,738.61 : x
  2. Step 2: Convert to fraction form
    3,154.78/4,353.55 = 1,738.61/x
  3. Step 3: Cross multiply
    3,154.78x = 4,353.55 × 1,738.61
  4. Step 4: Simplify right side
    3,154.78x = 7,569,125.57
  5. Step 5: Solve for x
    x = 7,569,125.57/3,154.78
  6. Step 6: Final answer
    x = 2,399.26

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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.