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Finding the Fourth Proportional to 2,791.46, 3,851.45 and 1,798.00

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Solution

The fourth proportional to 2,791.46, 3,851.45 and 1,798.00 is: 2,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.46 : 3,851.45 = 1,798.00 : x
  2. Step 2: Convert to fraction form
    2,791.46/3,851.45 = 1,798.00/x
  3. Step 3: Cross multiply
    2,791.46x = 3,851.45 × 1,798.00
  4. Step 4: Simplify right side
    2,791.46x = 6,924,895.22
  5. Step 5: Solve for x
    x = 6,924,895.22/2,791.46
  6. Step 6: Final answer
    x = 2,480.74

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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.