Home / 4,887.20-6,738.96-3,116

Finding the Fourth Proportional to 4,887.20, 6,738.96 and 3,116

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Solution

The fourth proportional to 4,887.20, 6,738.96 and 3,116 is: 4,296.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.20 : 6,738.96 = 3,116 : x
  2. Step 2: Convert to fraction form
    4,887.20/6,738.96 = 3,116/x
  3. Step 3: Cross multiply
    4,887.20x = 6,738.96 × 3,116
  4. Step 4: Simplify right side
    4,887.20x = 20,998,599.36
  5. Step 5: Solve for x
    x = 20,998,599.36/4,887.20
  6. Step 6: Final answer
    x = 4,296.65

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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.