Home / 3,448.38-5,172.06-983.40

Finding the Fourth Proportional to 3,448.38, 5,172.06 and 983.40

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Solution

The fourth proportional to 3,448.38, 5,172.06 and 983.40 is: 1,474.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,448.38 : 5,172.06 = 983.40 : x
  2. Step 2: Convert to fraction form
    3,448.38/5,172.06 = 983.40/x
  3. Step 3: Cross multiply
    3,448.38x = 5,172.06 × 983.40
  4. Step 4: Simplify right side
    3,448.38x = 5,086,203.80
  5. Step 5: Solve for x
    x = 5,086,203.80/3,448.38
  6. Step 6: Final answer
    x = 1,474.95

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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.