Home / 7,156.39-10,736.13-2,939.65

Finding the Fourth Proportional to 7,156.39, 10,736.13 and 2,939.65

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Solution

The fourth proportional to 7,156.39, 10,736.13 and 2,939.65 is: 4,410.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156.39 : 10,736.13 = 2,939.65 : x
  2. Step 2: Convert to fraction form
    7,156.39/10,736.13 = 2,939.65/x
  3. Step 3: Cross multiply
    7,156.39x = 10,736.13 × 2,939.65
  4. Step 4: Simplify right side
    7,156.39x = 31,560,464.55
  5. Step 5: Solve for x
    x = 31,560,464.55/7,156.39
  6. Step 6: Final answer
    x = 4,410.11

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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.