Home / 7,929.72-11,895.95-2,665.24

Finding the Fourth Proportional to 7,929.72, 11,895.95 and 2,665.24

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Solution

The fourth proportional to 7,929.72, 11,895.95 and 2,665.24 is: 3,998.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.72 : 11,895.95 = 2,665.24 : x
  2. Step 2: Convert to fraction form
    7,929.72/11,895.95 = 2,665.24/x
  3. Step 3: Cross multiply
    7,929.72x = 11,895.95 × 2,665.24
  4. Step 4: Simplify right side
    7,929.72x = 31,705,561.78
  5. Step 5: Solve for x
    x = 31,705,561.78/7,929.72
  6. Step 6: Final answer
    x = 3,998.32

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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.