Home / 4,143.12-5,715.76-2,743.44

Finding the Fourth Proportional to 4,143.12, 5,715.76 and 2,743.44

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Solution

The fourth proportional to 4,143.12, 5,715.76 and 2,743.44 is: 3,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.12 : 5,715.76 = 2,743.44 : x
  2. Step 2: Convert to fraction form
    4,143.12/5,715.76 = 2,743.44/x
  3. Step 3: Cross multiply
    4,143.12x = 5,715.76 × 2,743.44
  4. Step 4: Simplify right side
    4,143.12x = 15,680,844.61
  5. Step 5: Solve for x
    x = 15,680,844.61/4,143.12
  6. Step 6: Final answer
    x = 3,784.79

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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.