Home / 6,619.72-9,135.24-3,635.76

Finding the Fourth Proportional to 6,619.72, 9,135.24 and 3,635.76

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Solution

The fourth proportional to 6,619.72, 9,135.24 and 3,635.76 is: 5,017.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.72 : 9,135.24 = 3,635.76 : x
  2. Step 2: Convert to fraction form
    6,619.72/9,135.24 = 3,635.76/x
  3. Step 3: Cross multiply
    6,619.72x = 9,135.24 × 3,635.76
  4. Step 4: Simplify right side
    6,619.72x = 33,213,476.33
  5. Step 5: Solve for x
    x = 33,213,476.33/6,619.72
  6. Step 6: Final answer
    x = 5,017.35

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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.