Home / 5,286.29-7,928.74-1,998.95

Finding the Fourth Proportional to 5,286.29, 7,928.74 and 1,998.95

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Solution

The fourth proportional to 5,286.29, 7,928.74 and 1,998.95 is: 2,998.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.29 : 7,928.74 = 1,998.95 : x
  2. Step 2: Convert to fraction form
    5,286.29/7,928.74 = 1,998.95/x
  3. Step 3: Cross multiply
    5,286.29x = 7,928.74 × 1,998.95
  4. Step 4: Simplify right side
    5,286.29x = 15,849,190.20
  5. Step 5: Solve for x
    x = 15,849,190.20/5,286.29
  6. Step 6: Final answer
    x = 2,998.17

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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.