Home / 6,517.06-8,991.45-3,997.91

Finding the Fourth Proportional to 6,517.06, 8,991.45 and 3,997.91

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Solution

The fourth proportional to 6,517.06, 8,991.45 and 3,997.91 is: 5,515.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517.06 : 8,991.45 = 3,997.91 : x
  2. Step 2: Convert to fraction form
    6,517.06/8,991.45 = 3,997.91/x
  3. Step 3: Cross multiply
    6,517.06x = 8,991.45 × 3,997.91
  4. Step 4: Simplify right side
    6,517.06x = 35,947,030.35
  5. Step 5: Solve for x
    x = 35,947,030.35/6,517.06
  6. Step 6: Final answer
    x = 5,515.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.