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Finding the Fourth Proportional to 5,396.76, 8,089.98 and 2,108.76

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Solution

The fourth proportional to 5,396.76, 8,089.98 and 2,108.76 is: 3,161.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.76 : 8,089.98 = 2,108.76 : x
  2. Step 2: Convert to fraction form
    5,396.76/8,089.98 = 2,108.76/x
  3. Step 3: Cross multiply
    5,396.76x = 8,089.98 × 2,108.76
  4. Step 4: Simplify right side
    5,396.76x = 17,059,826.22
  5. Step 5: Solve for x
    x = 17,059,826.22/5,396.76
  6. Step 6: Final answer
    x = 3,161.12

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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.