Home / 3,798.36-5,241.78-2,142.36

Finding the Fourth Proportional to 3,798.36, 5,241.78 and 2,142.36

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Solution

The fourth proportional to 3,798.36, 5,241.78 and 2,142.36 is: 2,956.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,798.36 : 5,241.78 = 2,142.36 : x
  2. Step 2: Convert to fraction form
    3,798.36/5,241.78 = 2,142.36/x
  3. Step 3: Cross multiply
    3,798.36x = 5,241.78 × 2,142.36
  4. Step 4: Simplify right side
    3,798.36x = 11,229,779.80
  5. Step 5: Solve for x
    x = 11,229,779.80/3,798.36
  6. Step 6: Final answer
    x = 2,956.48

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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.