Home / 2,275.20-3,136.08-1,611

Finding the Fourth Proportional to 2,275.20, 3,136.08 and 1,611

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Solution

The fourth proportional to 2,275.20, 3,136.08 and 1,611 is: 2,220.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.20 : 3,136.08 = 1,611 : x
  2. Step 2: Convert to fraction form
    2,275.20/3,136.08 = 1,611/x
  3. Step 3: Cross multiply
    2,275.20x = 3,136.08 × 1,611
  4. Step 4: Simplify right side
    2,275.20x = 5,052,224.88
  5. Step 5: Solve for x
    x = 5,052,224.88/2,275.20
  6. Step 6: Final answer
    x = 2,220.56

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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.