Home / 7,711.77-11,560.73-2,777.96

Finding the Fourth Proportional to 7,711.77, 11,560.73 and 2,777.96

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Solution

The fourth proportional to 7,711.77, 11,560.73 and 2,777.96 is: 4,164.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711.77 : 11,560.73 = 2,777.96 : x
  2. Step 2: Convert to fraction form
    7,711.77/11,560.73 = 2,777.96/x
  3. Step 3: Cross multiply
    7,711.77x = 11,560.73 × 2,777.96
  4. Step 4: Simplify right side
    7,711.77x = 32,115,173.82
  5. Step 5: Solve for x
    x = 32,115,173.82/7,711.77
  6. Step 6: Final answer
    x = 4,164.44

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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.