Home / 2,218.40-3,327.68-575.11

Finding the Fourth Proportional to 2,218.40, 3,327.68 and 575.11

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Solution

The fourth proportional to 2,218.40, 3,327.68 and 575.11 is: 862.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.40 : 3,327.68 = 575.11 : x
  2. Step 2: Convert to fraction form
    2,218.40/3,327.68 = 575.11/x
  3. Step 3: Cross multiply
    2,218.40x = 3,327.68 × 575.11
  4. Step 4: Simplify right side
    2,218.40x = 1,913,782.04
  5. Step 5: Solve for x
    x = 1,913,782.04/2,218.40
  6. Step 6: Final answer
    x = 862.69

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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.