Home / 6,921.16-10,375.98-2,758.60

Finding the Fourth Proportional to 6,921.16, 10,375.98 and 2,758.60

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Solution

The fourth proportional to 6,921.16, 10,375.98 and 2,758.60 is: 4,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.16 : 10,375.98 = 2,758.60 : x
  2. Step 2: Convert to fraction form
    6,921.16/10,375.98 = 2,758.60/x
  3. Step 3: Cross multiply
    6,921.16x = 10,375.98 × 2,758.60
  4. Step 4: Simplify right side
    6,921.16x = 28,623,178.43
  5. Step 5: Solve for x
    x = 28,623,178.43/6,921.16
  6. Step 6: Final answer
    x = 4,135.60

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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.