Home / 5,116.96-7,678.68-2,929.96

Finding the Fourth Proportional to 5,116.96, 7,678.68 and 2,929.96

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Solution

The fourth proportional to 5,116.96, 7,678.68 and 2,929.96 is: 4,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.96 : 7,678.68 = 2,929.96 : x
  2. Step 2: Convert to fraction form
    5,116.96/7,678.68 = 2,929.96/x
  3. Step 3: Cross multiply
    5,116.96x = 7,678.68 × 2,929.96
  4. Step 4: Simplify right side
    5,116.96x = 22,498,225.25
  5. Step 5: Solve for x
    x = 22,498,225.25/5,116.96
  6. Step 6: Final answer
    x = 4,396.80

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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.