Home / 3,390.72-5,080.32-2,232.96

Finding the Fourth Proportional to 3,390.72, 5,080.32 and 2,232.96

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Solution

The fourth proportional to 3,390.72, 5,080.32 and 2,232.96 is: 3,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.72 : 5,080.32 = 2,232.96 : x
  2. Step 2: Convert to fraction form
    3,390.72/5,080.32 = 2,232.96/x
  3. Step 3: Cross multiply
    3,390.72x = 5,080.32 × 2,232.96
  4. Step 4: Simplify right side
    3,390.72x = 11,344,151.35
  5. Step 5: Solve for x
    x = 11,344,151.35/3,390.72
  6. Step 6: Final answer
    x = 3,345.65

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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.