Home / 2,936.32-4,049.60-2,155.52

Finding the Fourth Proportional to 2,936.32, 4,049.60 and 2,155.52

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Solution

The fourth proportional to 2,936.32, 4,049.60 and 2,155.52 is: 2,972.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.32 : 4,049.60 = 2,155.52 : x
  2. Step 2: Convert to fraction form
    2,936.32/4,049.60 = 2,155.52/x
  3. Step 3: Cross multiply
    2,936.32x = 4,049.60 × 2,155.52
  4. Step 4: Simplify right side
    2,936.32x = 8,728,993.79
  5. Step 5: Solve for x
    x = 8,728,993.79/2,936.32
  6. Step 6: Final answer
    x = 2,972.77

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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.