Home / 3,845.12-5,767.68-1,071.80

Finding the Fourth Proportional to 3,845.12, 5,767.68 and 1,071.80

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Solution

The fourth proportional to 3,845.12, 5,767.68 and 1,071.80 is: 1,607.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.12 : 5,767.68 = 1,071.80 : x
  2. Step 2: Convert to fraction form
    3,845.12/5,767.68 = 1,071.80/x
  3. Step 3: Cross multiply
    3,845.12x = 5,767.68 × 1,071.80
  4. Step 4: Simplify right side
    3,845.12x = 6,181,765.23
  5. Step 5: Solve for x
    x = 6,181,765.23/3,845.12
  6. Step 6: Final answer
    x = 1,607.69

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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.