Home / 7,822.21-11,734.84-3,439.65

Finding the Fourth Proportional to 7,822.21, 11,734.84 and 3,439.65

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Solution

The fourth proportional to 7,822.21, 11,734.84 and 3,439.65 is: 5,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,822.21 : 11,734.84 = 3,439.65 : x
  2. Step 2: Convert to fraction form
    7,822.21/11,734.84 = 3,439.65/x
  3. Step 3: Cross multiply
    7,822.21x = 11,734.84 × 3,439.65
  4. Step 4: Simplify right side
    7,822.21x = 40,363,742.41
  5. Step 5: Solve for x
    x = 40,363,742.41/7,822.21
  6. Step 6: Final answer
    x = 5,160.15

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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.