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Finding the Fourth Proportional to 7,953.01, 11,929.52 and 2,758.89

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Solution

The fourth proportional to 7,953.01, 11,929.52 and 2,758.89 is: 4,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953.01 : 11,929.52 = 2,758.89 : x
  2. Step 2: Convert to fraction form
    7,953.01/11,929.52 = 2,758.89/x
  3. Step 3: Cross multiply
    7,953.01x = 11,929.52 × 2,758.89
  4. Step 4: Simplify right side
    7,953.01x = 32,912,233.43
  5. Step 5: Solve for x
    x = 32,912,233.43/7,953.01
  6. Step 6: Final answer
    x = 4,138.34

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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.