Home / 3,280.56-4,929-2,911.92

Finding the Fourth Proportional to 3,280.56, 4,929 and 2,911.92

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Solution

The fourth proportional to 3,280.56, 4,929 and 2,911.92 is: 4,375.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.56 : 4,929 = 2,911.92 : x
  2. Step 2: Convert to fraction form
    3,280.56/4,929 = 2,911.92/x
  3. Step 3: Cross multiply
    3,280.56x = 4,929 × 2,911.92
  4. Step 4: Simplify right side
    3,280.56x = 14,352,853.68
  5. Step 5: Solve for x
    x = 14,352,853.68/3,280.56
  6. Step 6: Final answer
    x = 4,375.12

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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.