Home / 3,281.78-4,911.30-2,689.94

Finding the Fourth Proportional to 3,281.78, 4,911.30 and 2,689.94

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Solution

The fourth proportional to 3,281.78, 4,911.30 and 2,689.94 is: 4,025.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.78 : 4,911.30 = 2,689.94 : x
  2. Step 2: Convert to fraction form
    3,281.78/4,911.30 = 2,689.94/x
  3. Step 3: Cross multiply
    3,281.78x = 4,911.30 × 2,689.94
  4. Step 4: Simplify right side
    3,281.78x = 13,211,102.32
  5. Step 5: Solve for x
    x = 13,211,102.32/3,281.78
  6. Step 6: Final answer
    x = 4,025.59

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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.