Home / 3,785.36-5,677.43-1,188.90

Finding the Fourth Proportional to 3,785.36, 5,677.43 and 1,188.90

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Solution

The fourth proportional to 3,785.36, 5,677.43 and 1,188.90 is: 1,783.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.36 : 5,677.43 = 1,188.90 : x
  2. Step 2: Convert to fraction form
    3,785.36/5,677.43 = 1,188.90/x
  3. Step 3: Cross multiply
    3,785.36x = 5,677.43 × 1,188.90
  4. Step 4: Simplify right side
    3,785.36x = 6,749,890.58
  5. Step 5: Solve for x
    x = 6,749,890.58/3,785.36
  6. Step 6: Final answer
    x = 1,783.16

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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.