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Finding the Fourth Proportional to 5,402.03, 8,102.77 and 1,890.95

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Solution

The fourth proportional to 5,402.03, 8,102.77 and 1,890.95 is: 2,836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.03 : 8,102.77 = 1,890.95 : x
  2. Step 2: Convert to fraction form
    5,402.03/8,102.77 = 1,890.95/x
  3. Step 3: Cross multiply
    5,402.03x = 8,102.77 × 1,890.95
  4. Step 4: Simplify right side
    5,402.03x = 15,321,887.69
  5. Step 5: Solve for x
    x = 15,321,887.69/5,402.03
  6. Step 6: Final answer
    x = 2,836.32

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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.