Home / 3,136.21-4,326.20-2,017.28

Finding the Fourth Proportional to 3,136.21, 4,326.20 and 2,017.28

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Solution

The fourth proportional to 3,136.21, 4,326.20 and 2,017.28 is: 2,782.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.21 : 4,326.20 = 2,017.28 : x
  2. Step 2: Convert to fraction form
    3,136.21/4,326.20 = 2,017.28/x
  3. Step 3: Cross multiply
    3,136.21x = 4,326.20 × 2,017.28
  4. Step 4: Simplify right side
    3,136.21x = 8,727,156.74
  5. Step 5: Solve for x
    x = 8,727,156.74/3,136.21
  6. Step 6: Final answer
    x = 2,782.71

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