Home / 7,954.73-11,931.98-2,688.61

Finding the Fourth Proportional to 7,954.73, 11,931.98 and 2,688.61

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Solution

The fourth proportional to 7,954.73, 11,931.98 and 2,688.61 is: 4,032.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.73 : 11,931.98 = 2,688.61 : x
  2. Step 2: Convert to fraction form
    7,954.73/11,931.98 = 2,688.61/x
  3. Step 3: Cross multiply
    7,954.73x = 11,931.98 × 2,688.61
  4. Step 4: Simplify right side
    7,954.73x = 32,080,427.30
  5. Step 5: Solve for x
    x = 32,080,427.30/7,954.73
  6. Step 6: Final answer
    x = 4,032.88

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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.