Home / 3,853.10-5,317.11-2,174.54

Finding the Fourth Proportional to 3,853.10, 5,317.11 and 2,174.54

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Solution

The fourth proportional to 3,853.10, 5,317.11 and 2,174.54 is: 3,000.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.10 : 5,317.11 = 2,174.54 : x
  2. Step 2: Convert to fraction form
    3,853.10/5,317.11 = 2,174.54/x
  3. Step 3: Cross multiply
    3,853.10x = 5,317.11 × 2,174.54
  4. Step 4: Simplify right side
    3,853.10x = 11,562,268.38
  5. Step 5: Solve for x
    x = 11,562,268.38/3,853.10
  6. Step 6: Final answer
    x = 3,000.77

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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.