Home / 2,272.60-3,136.33-1,264.45

Finding the Fourth Proportional to 2,272.60, 3,136.33 and 1,264.45

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Solution

The fourth proportional to 2,272.60, 3,136.33 and 1,264.45 is: 1,745.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.60 : 3,136.33 = 1,264.45 : x
  2. Step 2: Convert to fraction form
    2,272.60/3,136.33 = 1,264.45/x
  3. Step 3: Cross multiply
    2,272.60x = 3,136.33 × 1,264.45
  4. Step 4: Simplify right side
    2,272.60x = 3,965,732.47
  5. Step 5: Solve for x
    x = 3,965,732.47/2,272.60
  6. Step 6: Final answer
    x = 1,745.02

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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.