Home / 7,847.31-11,769.91-2,916.28

Finding the Fourth Proportional to 7,847.31, 11,769.91 and 2,916.28

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Solution

The fourth proportional to 7,847.31, 11,769.91 and 2,916.28 is: 4,374.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.31 : 11,769.91 = 2,916.28 : x
  2. Step 2: Convert to fraction form
    7,847.31/11,769.91 = 2,916.28/x
  3. Step 3: Cross multiply
    7,847.31x = 11,769.91 × 2,916.28
  4. Step 4: Simplify right side
    7,847.31x = 34,324,294.29
  5. Step 5: Solve for x
    x = 34,324,294.29/7,847.31
  6. Step 6: Final answer
    x = 4,374.02

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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.