Home / 2,790.44-3,850.91-1,531.55

Finding the Fourth Proportional to 2,790.44, 3,850.91 and 1,531.55

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Solution

The fourth proportional to 2,790.44, 3,850.91 and 1,531.55 is: 2,113.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.44 : 3,850.91 = 1,531.55 : x
  2. Step 2: Convert to fraction form
    2,790.44/3,850.91 = 1,531.55/x
  3. Step 3: Cross multiply
    2,790.44x = 3,850.91 × 1,531.55
  4. Step 4: Simplify right side
    2,790.44x = 5,897,834.30
  5. Step 5: Solve for x
    x = 5,897,834.30/2,790.44
  6. Step 6: Final answer
    x = 2,113.59

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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.