Home / 2,929.37-4,394.81-1,286.38

Finding the Fourth Proportional to 2,929.37, 4,394.81 and 1,286.38

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Solution

The fourth proportional to 2,929.37, 4,394.81 and 1,286.38 is: 1,929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.37 : 4,394.81 = 1,286.38 : x
  2. Step 2: Convert to fraction form
    2,929.37/4,394.81 = 1,286.38/x
  3. Step 3: Cross multiply
    2,929.37x = 4,394.81 × 1,286.38
  4. Step 4: Simplify right side
    2,929.37x = 5,653,397.16
  5. Step 5: Solve for x
    x = 5,653,397.16/2,929.37
  6. Step 6: Final answer
    x = 1,929.91

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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.