Home / 3,310.89-4,569.11-1,818.90

Finding the Fourth Proportional to 3,310.89, 4,569.11 and 1,818.90

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Solution

The fourth proportional to 3,310.89, 4,569.11 and 1,818.90 is: 2,510.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.89 : 4,569.11 = 1,818.90 : x
  2. Step 2: Convert to fraction form
    3,310.89/4,569.11 = 1,818.90/x
  3. Step 3: Cross multiply
    3,310.89x = 4,569.11 × 1,818.90
  4. Step 4: Simplify right side
    3,310.89x = 8,310,745.08
  5. Step 5: Solve for x
    x = 8,310,745.08/3,310.89
  6. Step 6: Final answer
    x = 2,510.12

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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.