Home / 3,621.13-5,431.80-1,773.73

Finding the Fourth Proportional to 3,621.13, 5,431.80 and 1,773.73

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Solution

The fourth proportional to 3,621.13, 5,431.80 and 1,773.73 is: 2,660.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.13 : 5,431.80 = 1,773.73 : x
  2. Step 2: Convert to fraction form
    3,621.13/5,431.80 = 1,773.73/x
  3. Step 3: Cross multiply
    3,621.13x = 5,431.80 × 1,773.73
  4. Step 4: Simplify right side
    3,621.13x = 9,634,546.61
  5. Step 5: Solve for x
    x = 9,634,546.61/3,621.13
  6. Step 6: Final answer
    x = 2,660.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.