Home / 7,661.13-11,491.69-2,114.52

Finding the Fourth Proportional to 7,661.13, 11,491.69 and 2,114.52

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Solution

The fourth proportional to 7,661.13, 11,491.69 and 2,114.52 is: 3,171.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.13 : 11,491.69 = 2,114.52 : x
  2. Step 2: Convert to fraction form
    7,661.13/11,491.69 = 2,114.52/x
  3. Step 3: Cross multiply
    7,661.13x = 11,491.69 × 2,114.52
  4. Step 4: Simplify right side
    7,661.13x = 24,299,408.34
  5. Step 5: Solve for x
    x = 24,299,408.34/7,661.13
  6. Step 6: Final answer
    x = 3,171.78

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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.