Home / 3,728.83-5,146.68-2,311.66

Finding the Fourth Proportional to 3,728.83, 5,146.68 and 2,311.66

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Solution

The fourth proportional to 3,728.83, 5,146.68 and 2,311.66 is: 3,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.83 : 5,146.68 = 2,311.66 : x
  2. Step 2: Convert to fraction form
    3,728.83/5,146.68 = 2,311.66/x
  3. Step 3: Cross multiply
    3,728.83x = 5,146.68 × 2,311.66
  4. Step 4: Simplify right side
    3,728.83x = 11,897,374.29
  5. Step 5: Solve for x
    x = 11,897,374.29/3,728.83
  6. Step 6: Final answer
    x = 3,190.65

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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.