Home / 2,791.53-3,851.55-1,798.20

Finding the Fourth Proportional to 2,791.53, 3,851.55 and 1,798.20

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Solution

The fourth proportional to 2,791.53, 3,851.55 and 1,798.20 is: 2,481.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.53 : 3,851.55 = 1,798.20 : x
  2. Step 2: Convert to fraction form
    2,791.53/3,851.55 = 1,798.20/x
  3. Step 3: Cross multiply
    2,791.53x = 3,851.55 × 1,798.20
  4. Step 4: Simplify right side
    2,791.53x = 6,925,857.21
  5. Step 5: Solve for x
    x = 6,925,857.21/2,791.53
  6. Step 6: Final answer
    x = 2,481.03

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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.