Home / 2,791.32-3,851.91-1,612.56

Finding the Fourth Proportional to 2,791.32, 3,851.91 and 1,612.56

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Solution

The fourth proportional to 2,791.32, 3,851.91 and 1,612.56 is: 2,225.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.32 : 3,851.91 = 1,612.56 : x
  2. Step 2: Convert to fraction form
    2,791.32/3,851.91 = 1,612.56/x
  3. Step 3: Cross multiply
    2,791.32x = 3,851.91 × 1,612.56
  4. Step 4: Simplify right side
    2,791.32x = 6,211,435.99
  5. Step 5: Solve for x
    x = 6,211,435.99/2,791.32
  6. Step 6: Final answer
    x = 2,225.27

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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.