Home / 3,707.82-5,115.78-2,174.74

Finding the Fourth Proportional to 3,707.82, 5,115.78 and 2,174.74

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Solution

The fourth proportional to 3,707.82, 5,115.78 and 2,174.74 is: 3,000.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.82 : 5,115.78 = 2,174.74 : x
  2. Step 2: Convert to fraction form
    3,707.82/5,115.78 = 2,174.74/x
  3. Step 3: Cross multiply
    3,707.82x = 5,115.78 × 2,174.74
  4. Step 4: Simplify right side
    3,707.82x = 11,125,478.61
  5. Step 5: Solve for x
    x = 11,125,478.61/3,707.82
  6. Step 6: Final answer
    x = 3,000.54

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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.