Home / 2,929.76-4,396.12-1,286.32

Finding the Fourth Proportional to 2,929.76, 4,396.12 and 1,286.32

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Solution

The fourth proportional to 2,929.76, 4,396.12 and 1,286.32 is: 1,930.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.76 : 4,396.12 = 1,286.32 : x
  2. Step 2: Convert to fraction form
    2,929.76/4,396.12 = 1,286.32/x
  3. Step 3: Cross multiply
    2,929.76x = 4,396.12 × 1,286.32
  4. Step 4: Simplify right side
    2,929.76x = 5,654,817.08
  5. Step 5: Solve for x
    x = 5,654,817.08/2,929.76
  6. Step 6: Final answer
    x = 1,930.13

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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.