Home / 2,272.58-3,136.20-1,277.85

Finding the Fourth Proportional to 2,272.58, 3,136.20 and 1,277.85

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Solution

The fourth proportional to 2,272.58, 3,136.20 and 1,277.85 is: 1,763.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.58 : 3,136.20 = 1,277.85 : x
  2. Step 2: Convert to fraction form
    2,272.58/3,136.20 = 1,277.85/x
  3. Step 3: Cross multiply
    2,272.58x = 3,136.20 × 1,277.85
  4. Step 4: Simplify right side
    2,272.58x = 4,007,593.17
  5. Step 5: Solve for x
    x = 4,007,593.17/2,272.58
  6. Step 6: Final answer
    x = 1,763.46

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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.