Home / 2,777.18-4,165.76-927.87

Finding the Fourth Proportional to 2,777.18, 4,165.76 and 927.87

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Solution

The fourth proportional to 2,777.18, 4,165.76 and 927.87 is: 1,391.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.18 : 4,165.76 = 927.87 : x
  2. Step 2: Convert to fraction form
    2,777.18/4,165.76 = 927.87/x
  3. Step 3: Cross multiply
    2,777.18x = 4,165.76 × 927.87
  4. Step 4: Simplify right side
    2,777.18x = 3,865,283.73
  5. Step 5: Solve for x
    x = 3,865,283.73/2,777.18
  6. Step 6: Final answer
    x = 1,391.80

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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.