Home / 3,874.80-5,811.06-1,683

Finding the Fourth Proportional to 3,874.80, 5,811.06 and 1,683

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Solution

The fourth proportional to 3,874.80, 5,811.06 and 1,683 is: 2,524.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.80 : 5,811.06 = 1,683 : x
  2. Step 2: Convert to fraction form
    3,874.80/5,811.06 = 1,683/x
  3. Step 3: Cross multiply
    3,874.80x = 5,811.06 × 1,683
  4. Step 4: Simplify right side
    3,874.80x = 9,780,013.98
  5. Step 5: Solve for x
    x = 9,780,013.98/3,874.80
  6. Step 6: Final answer
    x = 2,524.00

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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.