Home / 6,917.02-10,375.94-1,986.55

Finding the Fourth Proportional to 6,917.02, 10,375.94 and 1,986.55

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Solution

The fourth proportional to 6,917.02, 10,375.94 and 1,986.55 is: 2,979.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.02 : 10,375.94 = 1,986.55 : x
  2. Step 2: Convert to fraction form
    6,917.02/10,375.94 = 1,986.55/x
  3. Step 3: Cross multiply
    6,917.02x = 10,375.94 × 1,986.55
  4. Step 4: Simplify right side
    6,917.02x = 20,612,323.61
  5. Step 5: Solve for x
    x = 20,612,323.61/6,917.02
  6. Step 6: Final answer
    x = 2,979.94

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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.