Home / 3,667.32-5,500.38-1,326.90

Finding the Fourth Proportional to 3,667.32, 5,500.38 and 1,326.90

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Solution

The fourth proportional to 3,667.32, 5,500.38 and 1,326.90 is: 1,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,667.32 : 5,500.38 = 1,326.90 : x
  2. Step 2: Convert to fraction form
    3,667.32/5,500.38 = 1,326.90/x
  3. Step 3: Cross multiply
    3,667.32x = 5,500.38 × 1,326.90
  4. Step 4: Simplify right side
    3,667.32x = 7,298,454.22
  5. Step 5: Solve for x
    x = 7,298,454.22/3,667.32
  6. Step 6: Final answer
    x = 1,990.13

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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.