Home / 7,943.94-11,916.45-2,748.06

Finding the Fourth Proportional to 7,943.94, 11,916.45 and 2,748.06

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Solution

The fourth proportional to 7,943.94, 11,916.45 and 2,748.06 is: 4,122.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.94 : 11,916.45 = 2,748.06 : x
  2. Step 2: Convert to fraction form
    7,943.94/11,916.45 = 2,748.06/x
  3. Step 3: Cross multiply
    7,943.94x = 11,916.45 × 2,748.06
  4. Step 4: Simplify right side
    7,943.94x = 32,747,119.59
  5. Step 5: Solve for x
    x = 32,747,119.59/7,943.94
  6. Step 6: Final answer
    x = 4,122.28

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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.