Home / 3,983.34-5,974.98-1,386.25

Finding the Fourth Proportional to 3,983.34, 5,974.98 and 1,386.25

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Solution

The fourth proportional to 3,983.34, 5,974.98 and 1,386.25 is: 2,079.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.34 : 5,974.98 = 1,386.25 : x
  2. Step 2: Convert to fraction form
    3,983.34/5,974.98 = 1,386.25/x
  3. Step 3: Cross multiply
    3,983.34x = 5,974.98 × 1,386.25
  4. Step 4: Simplify right side
    3,983.34x = 8,282,816.03
  5. Step 5: Solve for x
    x = 8,282,816.03/3,983.34
  6. Step 6: Final answer
    x = 2,079.36

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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.