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Finding the Fourth Proportional to 4,994.55, 7,489.88 and 1,872.86

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Solution

The fourth proportional to 4,994.55, 7,489.88 and 1,872.86 is: 2,808.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,994.55 : 7,489.88 = 1,872.86 : x
  2. Step 2: Convert to fraction form
    4,994.55/7,489.88 = 1,872.86/x
  3. Step 3: Cross multiply
    4,994.55x = 7,489.88 × 1,872.86
  4. Step 4: Simplify right side
    4,994.55x = 14,027,456.87
  5. Step 5: Solve for x
    x = 14,027,456.87/4,994.55
  6. Step 6: Final answer
    x = 2,808.55

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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.