Home / 7,408.92-11,120.64-3,516

Finding the Fourth Proportional to 7,408.92, 11,120.64 and 3,516

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Solution

The fourth proportional to 7,408.92, 11,120.64 and 3,516 is: 5,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.92 : 11,120.64 = 3,516 : x
  2. Step 2: Convert to fraction form
    7,408.92/11,120.64 = 3,516/x
  3. Step 3: Cross multiply
    7,408.92x = 11,120.64 × 3,516
  4. Step 4: Simplify right side
    7,408.92x = 39,100,170.24
  5. Step 5: Solve for x
    x = 39,100,170.24/7,408.92
  6. Step 6: Final answer
    x = 5,277.45

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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.