Home / 7,631.82-11,428.29-3,726

Finding the Fourth Proportional to 7,631.82, 11,428.29 and 3,726

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Solution

The fourth proportional to 7,631.82, 11,428.29 and 3,726 is: 5,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.82 : 11,428.29 = 3,726 : x
  2. Step 2: Convert to fraction form
    7,631.82/11,428.29 = 3,726/x
  3. Step 3: Cross multiply
    7,631.82x = 11,428.29 × 3,726
  4. Step 4: Simplify right side
    7,631.82x = 42,581,808.54
  5. Step 5: Solve for x
    x = 42,581,808.54/7,631.82
  6. Step 6: Final answer
    x = 5,579.51

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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.