Home / 4,919.50-6,788.91-2,711.50

Finding the Fourth Proportional to 4,919.50, 6,788.91 and 2,711.50

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Solution

The fourth proportional to 4,919.50, 6,788.91 and 2,711.50 is: 3,741.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.50 : 6,788.91 = 2,711.50 : x
  2. Step 2: Convert to fraction form
    4,919.50/6,788.91 = 2,711.50/x
  3. Step 3: Cross multiply
    4,919.50x = 6,788.91 × 2,711.50
  4. Step 4: Simplify right side
    4,919.50x = 18,408,129.47
  5. Step 5: Solve for x
    x = 18,408,129.47/4,919.50
  6. Step 6: Final answer
    x = 3,741.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.