Home / 3,727.68-5,143.86-2,215.11

Finding the Fourth Proportional to 3,727.68, 5,143.86 and 2,215.11

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Solution

The fourth proportional to 3,727.68, 5,143.86 and 2,215.11 is: 3,056.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.68 : 5,143.86 = 2,215.11 : x
  2. Step 2: Convert to fraction form
    3,727.68/5,143.86 = 2,215.11/x
  3. Step 3: Cross multiply
    3,727.68x = 5,143.86 × 2,215.11
  4. Step 4: Simplify right side
    3,727.68x = 11,394,215.72
  5. Step 5: Solve for x
    x = 11,394,215.72/3,727.68
  6. Step 6: Final answer
    x = 3,056.65

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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.