Home / 7,111.31-10,666.96-2,950.19

Finding the Fourth Proportional to 7,111.31, 10,666.96 and 2,950.19

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Solution

The fourth proportional to 7,111.31, 10,666.96 and 2,950.19 is: 4,425.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.31 : 10,666.96 = 2,950.19 : x
  2. Step 2: Convert to fraction form
    7,111.31/10,666.96 = 2,950.19/x
  3. Step 3: Cross multiply
    7,111.31x = 10,666.96 × 2,950.19
  4. Step 4: Simplify right side
    7,111.31x = 31,469,578.01
  5. Step 5: Solve for x
    x = 31,469,578.01/7,111.31
  6. Step 6: Final answer
    x = 4,425.29

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Similar ratio
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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.