Home / 2,272.70-3,136.11-1,277.75

Finding the Fourth Proportional to 2,272.70, 3,136.11 and 1,277.75

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Solution

The fourth proportional to 2,272.70, 3,136.11 and 1,277.75 is: 1,763.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.70 : 3,136.11 = 1,277.75 : x
  2. Step 2: Convert to fraction form
    2,272.70/3,136.11 = 1,277.75/x
  3. Step 3: Cross multiply
    2,272.70x = 3,136.11 × 1,277.75
  4. Step 4: Simplify right side
    2,272.70x = 4,007,164.55
  5. Step 5: Solve for x
    x = 4,007,164.55/2,272.70
  6. Step 6: Final answer
    x = 1,763.17

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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.