Home / 3,853.58-5,318.16-2,174.90

Finding the Fourth Proportional to 3,853.58, 5,318.16 and 2,174.90

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Solution

The fourth proportional to 3,853.58, 5,318.16 and 2,174.90 is: 3,001.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.58 : 5,318.16 = 2,174.90 : x
  2. Step 2: Convert to fraction form
    3,853.58/5,318.16 = 2,174.90/x
  3. Step 3: Cross multiply
    3,853.58x = 5,318.16 × 2,174.90
  4. Step 4: Simplify right side
    3,853.58x = 11,566,466.18
  5. Step 5: Solve for x
    x = 11,566,466.18/3,853.58
  6. Step 6: Final answer
    x = 3,001.49

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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.