Home / 3,784.36-5,676.78-1,188.04

Finding the Fourth Proportional to 3,784.36, 5,676.78 and 1,188.04

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Solution

The fourth proportional to 3,784.36, 5,676.78 and 1,188.04 is: 1,782.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.36 : 5,676.78 = 1,188.04 : x
  2. Step 2: Convert to fraction form
    3,784.36/5,676.78 = 1,188.04/x
  3. Step 3: Cross multiply
    3,784.36x = 5,676.78 × 1,188.04
  4. Step 4: Simplify right side
    3,784.36x = 6,744,241.71
  5. Step 5: Solve for x
    x = 6,744,241.71/3,784.36
  6. Step 6: Final answer
    x = 1,782.14

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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.