Home / 6,919.25-10,372.38-3,407.90

Finding the Fourth Proportional to 6,919.25, 10,372.38 and 3,407.90

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Solution

The fourth proportional to 6,919.25, 10,372.38 and 3,407.90 is: 5,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.25 : 10,372.38 = 3,407.90 : x
  2. Step 2: Convert to fraction form
    6,919.25/10,372.38 = 3,407.90/x
  3. Step 3: Cross multiply
    6,919.25x = 10,372.38 × 3,407.90
  4. Step 4: Simplify right side
    6,919.25x = 35,347,981.94
  5. Step 5: Solve for x
    x = 35,347,981.94/6,919.25
  6. Step 6: Final answer
    x = 5,108.65

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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.