Home / 7,408.69-11,117.40-2,731.96

Finding the Fourth Proportional to 7,408.69, 11,117.40 and 2,731.96

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Solution

The fourth proportional to 7,408.69, 11,117.40 and 2,731.96 is: 4,099.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.69 : 11,117.40 = 2,731.96 : x
  2. Step 2: Convert to fraction form
    7,408.69/11,117.40 = 2,731.96/x
  3. Step 3: Cross multiply
    7,408.69x = 11,117.40 × 2,731.96
  4. Step 4: Simplify right side
    7,408.69x = 30,372,295.76
  5. Step 5: Solve for x
    x = 30,372,295.76/7,408.69
  6. Step 6: Final answer
    x = 4,099.55

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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.