Home / 2,214.90-3,315.96-1,821.24

Finding the Fourth Proportional to 2,214.90, 3,315.96 and 1,821.24

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Solution

The fourth proportional to 2,214.90, 3,315.96 and 1,821.24 is: 2,726.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.90 : 3,315.96 = 1,821.24 : x
  2. Step 2: Convert to fraction form
    2,214.90/3,315.96 = 1,821.24/x
  3. Step 3: Cross multiply
    2,214.90x = 3,315.96 × 1,821.24
  4. Step 4: Simplify right side
    2,214.90x = 6,039,158.99
  5. Step 5: Solve for x
    x = 6,039,158.99/2,214.90
  6. Step 6: Final answer
    x = 2,726.61

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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.