Home / 6,639.75-9,959.82-3,715.77

Finding the Fourth Proportional to 6,639.75, 9,959.82 and 3,715.77

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Solution

The fourth proportional to 6,639.75, 9,959.82 and 3,715.77 is: 5,573.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.75 : 9,959.82 = 3,715.77 : x
  2. Step 2: Convert to fraction form
    6,639.75/9,959.82 = 3,715.77/x
  3. Step 3: Cross multiply
    6,639.75x = 9,959.82 × 3,715.77
  4. Step 4: Simplify right side
    6,639.75x = 37,008,400.36
  5. Step 5: Solve for x
    x = 37,008,400.36/6,639.75
  6. Step 6: Final answer
    x = 5,573.76

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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.