Home / 2,436.08-3,361.92-1,388.48

Finding the Fourth Proportional to 2,436.08, 3,361.92 and 1,388.48

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Solution

The fourth proportional to 2,436.08, 3,361.92 and 1,388.48 is: 1,916.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,436.08 : 3,361.92 = 1,388.48 : x
  2. Step 2: Convert to fraction form
    2,436.08/3,361.92 = 1,388.48/x
  3. Step 3: Cross multiply
    2,436.08x = 3,361.92 × 1,388.48
  4. Step 4: Simplify right side
    2,436.08x = 4,667,958.68
  5. Step 5: Solve for x
    x = 4,667,958.68/2,436.08
  6. Step 6: Final answer
    x = 1,916.18

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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.