Home / 3,869.24-5,342.33-2,379.16

Finding the Fourth Proportional to 3,869.24, 5,342.33 and 2,379.16

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Solution

The fourth proportional to 3,869.24, 5,342.33 and 2,379.16 is: 3,284.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.24 : 5,342.33 = 2,379.16 : x
  2. Step 2: Convert to fraction form
    3,869.24/5,342.33 = 2,379.16/x
  3. Step 3: Cross multiply
    3,869.24x = 5,342.33 × 2,379.16
  4. Step 4: Simplify right side
    3,869.24x = 12,710,257.84
  5. Step 5: Solve for x
    x = 12,710,257.84/3,869.24
  6. Step 6: Final answer
    x = 3,284.95

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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.