Home / 3,315.10-4,961.85-2,580.70

Finding the Fourth Proportional to 3,315.10, 4,961.85 and 2,580.70

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Solution

The fourth proportional to 3,315.10, 4,961.85 and 2,580.70 is: 3,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.10 : 4,961.85 = 2,580.70 : x
  2. Step 2: Convert to fraction form
    3,315.10/4,961.85 = 2,580.70/x
  3. Step 3: Cross multiply
    3,315.10x = 4,961.85 × 2,580.70
  4. Step 4: Simplify right side
    3,315.10x = 12,805,046.30
  5. Step 5: Solve for x
    x = 12,805,046.30/3,315.10
  6. Step 6: Final answer
    x = 3,862.64

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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.