Home / 3,785.08-5,677.26-1,187.56

Finding the Fourth Proportional to 3,785.08, 5,677.26 and 1,187.56

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Solution

The fourth proportional to 3,785.08, 5,677.26 and 1,187.56 is: 1,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.08 : 5,677.26 = 1,187.56 : x
  2. Step 2: Convert to fraction form
    3,785.08/5,677.26 = 1,187.56/x
  3. Step 3: Cross multiply
    3,785.08x = 5,677.26 × 1,187.56
  4. Step 4: Simplify right side
    3,785.08x = 6,742,086.89
  5. Step 5: Solve for x
    x = 6,742,086.89/3,785.08
  6. Step 6: Final answer
    x = 1,781.23

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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.