Home / 3,853.46-5,317.74-2,174.86

Finding the Fourth Proportional to 3,853.46, 5,317.74 and 2,174.86

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Solution

The fourth proportional to 3,853.46, 5,317.74 and 2,174.86 is: 3,001.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.46 : 5,317.74 = 2,174.86 : x
  2. Step 2: Convert to fraction form
    3,853.46/5,317.74 = 2,174.86/x
  3. Step 3: Cross multiply
    3,853.46x = 5,317.74 × 2,174.86
  4. Step 4: Simplify right side
    3,853.46x = 11,565,340.02
  5. Step 5: Solve for x
    x = 11,565,340.02/3,853.46
  6. Step 6: Final answer
    x = 3,001.29

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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.