Home / 3,749.27-5,174.62-2,178.27

Finding the Fourth Proportional to 3,749.27, 5,174.62 and 2,178.27

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Solution

The fourth proportional to 3,749.27, 5,174.62 and 2,178.27 is: 3,006.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.27 : 5,174.62 = 2,178.27 : x
  2. Step 2: Convert to fraction form
    3,749.27/5,174.62 = 2,178.27/x
  3. Step 3: Cross multiply
    3,749.27x = 5,174.62 × 2,178.27
  4. Step 4: Simplify right side
    3,749.27x = 11,271,714.06
  5. Step 5: Solve for x
    x = 11,271,714.06/3,749.27
  6. Step 6: Final answer
    x = 3,006.38

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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.