Home / 3,278.72-4,913.92-1,635.84

Finding the Fourth Proportional to 3,278.72, 4,913.92 and 1,635.84

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Solution

The fourth proportional to 3,278.72, 4,913.92 and 1,635.84 is: 2,451.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.72 : 4,913.92 = 1,635.84 : x
  2. Step 2: Convert to fraction form
    3,278.72/4,913.92 = 1,635.84/x
  3. Step 3: Cross multiply
    3,278.72x = 4,913.92 × 1,635.84
  4. Step 4: Simplify right side
    3,278.72x = 8,038,386.89
  5. Step 5: Solve for x
    x = 8,038,386.89/3,278.72
  6. Step 6: Final answer
    x = 2,451.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.