Home / 7,929.50-11,892.29-2,664.70

Finding the Fourth Proportional to 7,929.50, 11,892.29 and 2,664.70

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Solution

The fourth proportional to 7,929.50, 11,892.29 and 2,664.70 is: 3,996.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.50 : 11,892.29 = 2,664.70 : x
  2. Step 2: Convert to fraction form
    7,929.50/11,892.29 = 2,664.70/x
  3. Step 3: Cross multiply
    7,929.50x = 11,892.29 × 2,664.70
  4. Step 4: Simplify right side
    7,929.50x = 31,689,342.11
  5. Step 5: Solve for x
    x = 31,689,342.11/7,929.50
  6. Step 6: Final answer
    x = 3,996.39

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1.5x scale

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.