Home / 3,727.44-5,143.56-2,155.64

Finding the Fourth Proportional to 3,727.44, 5,143.56 and 2,155.64

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Solution

The fourth proportional to 3,727.44, 5,143.56 and 2,155.64 is: 2,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.44 : 5,143.56 = 2,155.64 : x
  2. Step 2: Convert to fraction form
    3,727.44/5,143.56 = 2,155.64/x
  3. Step 3: Cross multiply
    3,727.44x = 5,143.56 × 2,155.64
  4. Step 4: Simplify right side
    3,727.44x = 11,087,637.96
  5. Step 5: Solve for x
    x = 11,087,637.96/3,727.44
  6. Step 6: Final answer
    x = 2,974.60

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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.