Home / 3,817.40-5,261.96-2,696.56

Finding the Fourth Proportional to 3,817.40, 5,261.96 and 2,696.56

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Solution

The fourth proportional to 3,817.40, 5,261.96 and 2,696.56 is: 3,716.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.40 : 5,261.96 = 2,696.56 : x
  2. Step 2: Convert to fraction form
    3,817.40/5,261.96 = 2,696.56/x
  3. Step 3: Cross multiply
    3,817.40x = 5,261.96 × 2,696.56
  4. Step 4: Simplify right side
    3,817.40x = 14,189,184.44
  5. Step 5: Solve for x
    x = 14,189,184.44/3,817.40
  6. Step 6: Final answer
    x = 3,716.98

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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.