Home / 3,936.96-5,435.76-2,445.48

Finding the Fourth Proportional to 3,936.96, 5,435.76 and 2,445.48

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Solution

The fourth proportional to 3,936.96, 5,435.76 and 2,445.48 is: 3,376.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.96 : 5,435.76 = 2,445.48 : x
  2. Step 2: Convert to fraction form
    3,936.96/5,435.76 = 2,445.48/x
  3. Step 3: Cross multiply
    3,936.96x = 5,435.76 × 2,445.48
  4. Step 4: Simplify right side
    3,936.96x = 13,293,042.36
  5. Step 5: Solve for x
    x = 13,293,042.36/3,936.96
  6. Step 6: Final answer
    x = 3,376.47

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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.