Home / 3,600.18-5,402.43-1,291.86

Finding the Fourth Proportional to 3,600.18, 5,402.43 and 1,291.86

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Solution

The fourth proportional to 3,600.18, 5,402.43 and 1,291.86 is: 1,938.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600.18 : 5,402.43 = 1,291.86 : x
  2. Step 2: Convert to fraction form
    3,600.18/5,402.43 = 1,291.86/x
  3. Step 3: Cross multiply
    3,600.18x = 5,402.43 × 1,291.86
  4. Step 4: Simplify right side
    3,600.18x = 6,979,183.22
  5. Step 5: Solve for x
    x = 6,979,183.22/3,600.18
  6. Step 6: Final answer
    x = 1,938.57

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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.