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Finding the Fourth Proportional to 4,998.98, 7,499.28 and 1,879.26

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Solution

The fourth proportional to 4,998.98, 7,499.28 and 1,879.26 is: 2,819.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.98 : 7,499.28 = 1,879.26 : x
  2. Step 2: Convert to fraction form
    4,998.98/7,499.28 = 1,879.26/x
  3. Step 3: Cross multiply
    4,998.98x = 7,499.28 × 1,879.26
  4. Step 4: Simplify right side
    4,998.98x = 14,093,096.93
  5. Step 5: Solve for x
    x = 14,093,096.93/4,998.98
  6. Step 6: Final answer
    x = 2,819.19

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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.