Home / 3,727.15-5,143.48-2,134.15

Finding the Fourth Proportional to 3,727.15, 5,143.48 and 2,134.15

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Solution

The fourth proportional to 3,727.15, 5,143.48 and 2,134.15 is: 2,945.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.15 : 5,143.48 = 2,134.15 : x
  2. Step 2: Convert to fraction form
    3,727.15/5,143.48 = 2,134.15/x
  3. Step 3: Cross multiply
    3,727.15x = 5,143.48 × 2,134.15
  4. Step 4: Simplify right side
    3,727.15x = 10,976,939.65
  5. Step 5: Solve for x
    x = 10,976,939.65/3,727.15
  6. Step 6: Final answer
    x = 2,945.13

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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.