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Finding the Fourth Proportional to 4,998.76, 7,497.42 and 2,919.74

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Solution

The fourth proportional to 4,998.76, 7,497.42 and 2,919.74 is: 4,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.76 : 7,497.42 = 2,919.74 : x
  2. Step 2: Convert to fraction form
    4,998.76/7,497.42 = 2,919.74/x
  3. Step 3: Cross multiply
    4,998.76x = 7,497.42 × 2,919.74
  4. Step 4: Simplify right side
    4,998.76x = 21,890,517.07
  5. Step 5: Solve for x
    x = 21,890,517.07/4,998.76
  6. Step 6: Final answer
    x = 4,379.19

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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.