Home / 7,561.77-11,342.61-1,939.41

Finding the Fourth Proportional to 7,561.77, 11,342.61 and 1,939.41

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Solution

The fourth proportional to 7,561.77, 11,342.61 and 1,939.41 is: 2,909.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,561.77 : 11,342.61 = 1,939.41 : x
  2. Step 2: Convert to fraction form
    7,561.77/11,342.61 = 1,939.41/x
  3. Step 3: Cross multiply
    7,561.77x = 11,342.61 × 1,939.41
  4. Step 4: Simplify right side
    7,561.77x = 21,997,990.29
  5. Step 5: Solve for x
    x = 21,997,990.29/7,561.77
  6. Step 6: Final answer
    x = 2,909.11

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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.