Home / 9,131.38-13,697.06-2,205.88

Finding the Fourth Proportional to 9,131.38, 13,697.06 and 2,205.88

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Solution

The fourth proportional to 9,131.38, 13,697.06 and 2,205.88 is: 3,308.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.38 : 13,697.06 = 2,205.88 : x
  2. Step 2: Convert to fraction form
    9,131.38/13,697.06 = 2,205.88/x
  3. Step 3: Cross multiply
    9,131.38x = 13,697.06 × 2,205.88
  4. Step 4: Simplify right side
    9,131.38x = 30,214,070.71
  5. Step 5: Solve for x
    x = 30,214,070.71/9,131.38
  6. Step 6: Final answer
    x = 3,308.82

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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.