Home / 4,078.72-5,630.97-2,685.52

Finding the Fourth Proportional to 4,078.72, 5,630.97 and 2,685.52

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Solution

The fourth proportional to 4,078.72, 5,630.97 and 2,685.52 is: 3,707.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.72 : 5,630.97 = 2,685.52 : x
  2. Step 2: Convert to fraction form
    4,078.72/5,630.97 = 2,685.52/x
  3. Step 3: Cross multiply
    4,078.72x = 5,630.97 × 2,685.52
  4. Step 4: Simplify right side
    4,078.72x = 15,122,084.56
  5. Step 5: Solve for x
    x = 15,122,084.56/4,078.72
  6. Step 6: Final answer
    x = 3,707.56

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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.