Home / 3,785.03-5,678.45-1,187.96

Finding the Fourth Proportional to 3,785.03, 5,678.45 and 1,187.96

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Solution

The fourth proportional to 3,785.03, 5,678.45 and 1,187.96 is: 1,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.03 : 5,678.45 = 1,187.96 : x
  2. Step 2: Convert to fraction form
    3,785.03/5,678.45 = 1,187.96/x
  3. Step 3: Cross multiply
    3,785.03x = 5,678.45 × 1,187.96
  4. Step 4: Simplify right side
    3,785.03x = 6,745,765.52
  5. Step 5: Solve for x
    x = 6,745,765.52/3,785.03
  6. Step 6: Final answer
    x = 1,782.22

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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.