Home / 7,864.29-10,857.78-4,884.44

Finding the Fourth Proportional to 7,864.29, 10,857.78 and 4,884.44

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Solution

The fourth proportional to 7,864.29, 10,857.78 and 4,884.44 is: 6,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.29 : 10,857.78 = 4,884.44 : x
  2. Step 2: Convert to fraction form
    7,864.29/10,857.78 = 4,884.44/x
  3. Step 3: Cross multiply
    7,864.29x = 10,857.78 × 4,884.44
  4. Step 4: Simplify right side
    7,864.29x = 53,034,120.65
  5. Step 5: Solve for x
    x = 53,034,120.65/7,864.29
  6. Step 6: Final answer
    x = 6,743.66

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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.