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Finding the Fourth Proportional to 3,791.36, 5,235.36 and 2,798.36

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Solution

The fourth proportional to 3,791.36, 5,235.36 and 2,798.36 is: 3,864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.36 : 5,235.36 = 2,798.36 : x
  2. Step 2: Convert to fraction form
    3,791.36/5,235.36 = 2,798.36/x
  3. Step 3: Cross multiply
    3,791.36x = 5,235.36 × 2,798.36
  4. Step 4: Simplify right side
    3,791.36x = 14,650,422.01
  5. Step 5: Solve for x
    x = 14,650,422.01/3,791.36
  6. Step 6: Final answer
    x = 3,864.16

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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.