Home / 6,887.15-10,321.50-3,371.78

Finding the Fourth Proportional to 6,887.15, 10,321.50 and 3,371.78

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Solution

The fourth proportional to 6,887.15, 10,321.50 and 3,371.78 is: 5,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.15 : 10,321.50 = 3,371.78 : x
  2. Step 2: Convert to fraction form
    6,887.15/10,321.50 = 3,371.78/x
  3. Step 3: Cross multiply
    6,887.15x = 10,321.50 × 3,371.78
  4. Step 4: Simplify right side
    6,887.15x = 34,801,798.18
  5. Step 5: Solve for x
    x = 34,801,798.18/6,887.15
  6. Step 6: Final answer
    x = 5,053.15

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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.