Home / 3,214.90-4,821.15-2,238.10

Finding the Fourth Proportional to 3,214.90, 4,821.15 and 2,238.10

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Solution

The fourth proportional to 3,214.90, 4,821.15 and 2,238.10 is: 3,356.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.90 : 4,821.15 = 2,238.10 : x
  2. Step 2: Convert to fraction form
    3,214.90/4,821.15 = 2,238.10/x
  3. Step 3: Cross multiply
    3,214.90x = 4,821.15 × 2,238.10
  4. Step 4: Simplify right side
    3,214.90x = 10,790,215.82
  5. Step 5: Solve for x
    x = 10,790,215.82/3,214.90
  6. Step 6: Final answer
    x = 3,356.31

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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.