Home / 3,804.21-5,251.70-2,389.95

Finding the Fourth Proportional to 3,804.21, 5,251.70 and 2,389.95

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Solution

The fourth proportional to 3,804.21, 5,251.70 and 2,389.95 is: 3,299.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,804.21 : 5,251.70 = 2,389.95 : x
  2. Step 2: Convert to fraction form
    3,804.21/5,251.70 = 2,389.95/x
  3. Step 3: Cross multiply
    3,804.21x = 5,251.70 × 2,389.95
  4. Step 4: Simplify right side
    3,804.21x = 12,551,288.47
  5. Step 5: Solve for x
    x = 12,551,288.47/3,804.21
  6. Step 6: Final answer
    x = 3,299.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.