Home / 3,581.25-5,371.83-1,389.98

Finding the Fourth Proportional to 3,581.25, 5,371.83 and 1,389.98

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Solution

The fourth proportional to 3,581.25, 5,371.83 and 1,389.98 is: 2,084.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.25 : 5,371.83 = 1,389.98 : x
  2. Step 2: Convert to fraction form
    3,581.25/5,371.83 = 1,389.98/x
  3. Step 3: Cross multiply
    3,581.25x = 5,371.83 × 1,389.98
  4. Step 4: Simplify right side
    3,581.25x = 7,466,709.40
  5. Step 5: Solve for x
    x = 7,466,709.40/3,581.25
  6. Step 6: Final answer
    x = 2,084.95

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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.