Home / 5,318.19-7,972.07-1,983.99

Finding the Fourth Proportional to 5,318.19, 7,972.07 and 1,983.99

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Solution

The fourth proportional to 5,318.19, 7,972.07 and 1,983.99 is: 2,974.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.19 : 7,972.07 = 1,983.99 : x
  2. Step 2: Convert to fraction form
    5,318.19/7,972.07 = 1,983.99/x
  3. Step 3: Cross multiply
    5,318.19x = 7,972.07 × 1,983.99
  4. Step 4: Simplify right side
    5,318.19x = 15,816,507.16
  5. Step 5: Solve for x
    x = 15,816,507.16/5,318.19
  6. Step 6: Final answer
    x = 2,974.04

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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.