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Finding the Fourth Proportional to 5,402.79, 8,104.14 and 1,892.79

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Solution

The fourth proportional to 5,402.79, 8,104.14 and 1,892.79 is: 2,839.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.79 : 8,104.14 = 1,892.79 : x
  2. Step 2: Convert to fraction form
    5,402.79/8,104.14 = 1,892.79/x
  3. Step 3: Cross multiply
    5,402.79x = 8,104.14 × 1,892.79
  4. Step 4: Simplify right side
    5,402.79x = 15,339,435.15
  5. Step 5: Solve for x
    x = 15,339,435.15/5,402.79
  6. Step 6: Final answer
    x = 2,839.17

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1.5x scale

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.