Home / 2,219.90-3,329.85-2,083.10

Finding the Fourth Proportional to 2,219.90, 3,329.85 and 2,083.10

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Solution

The fourth proportional to 2,219.90, 3,329.85 and 2,083.10 is: 3,124.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.90 : 3,329.85 = 2,083.10 : x
  2. Step 2: Convert to fraction form
    2,219.90/3,329.85 = 2,083.10/x
  3. Step 3: Cross multiply
    2,219.90x = 3,329.85 × 2,083.10
  4. Step 4: Simplify right side
    2,219.90x = 6,936,410.54
  5. Step 5: Solve for x
    x = 6,936,410.54/2,219.90
  6. Step 6: Final answer
    x = 3,124.65

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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.