Home / 5,402.18-8,108.73-3,455.75

Finding the Fourth Proportional to 5,402.18, 8,108.73 and 3,455.75

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Solution

The fourth proportional to 5,402.18, 8,108.73 and 3,455.75 is: 5,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.18 : 8,108.73 = 3,455.75 : x
  2. Step 2: Convert to fraction form
    5,402.18/8,108.73 = 3,455.75/x
  3. Step 3: Cross multiply
    5,402.18x = 8,108.73 × 3,455.75
  4. Step 4: Simplify right side
    5,402.18x = 28,021,743.70
  5. Step 5: Solve for x
    x = 28,021,743.70/5,402.18
  6. Step 6: Final answer
    x = 5,187.12

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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.