Home / 7,943.64-11,914.90-2,679.08

Finding the Fourth Proportional to 7,943.64, 11,914.90 and 2,679.08

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Solution

The fourth proportional to 7,943.64, 11,914.90 and 2,679.08 is: 4,018.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.64 : 11,914.90 = 2,679.08 : x
  2. Step 2: Convert to fraction form
    7,943.64/11,914.90 = 2,679.08/x
  3. Step 3: Cross multiply
    7,943.64x = 11,914.90 × 2,679.08
  4. Step 4: Simplify right side
    7,943.64x = 31,920,970.29
  5. Step 5: Solve for x
    x = 31,920,970.29/7,943.64
  6. Step 6: Final answer
    x = 4,018.43

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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.