Home / 2,772.14-4,156.99-1,039.55

Finding the Fourth Proportional to 2,772.14, 4,156.99 and 1,039.55

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Solution

The fourth proportional to 2,772.14, 4,156.99 and 1,039.55 is: 1,558.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.14 : 4,156.99 = 1,039.55 : x
  2. Step 2: Convert to fraction form
    2,772.14/4,156.99 = 1,039.55/x
  3. Step 3: Cross multiply
    2,772.14x = 4,156.99 × 1,039.55
  4. Step 4: Simplify right side
    2,772.14x = 4,321,398.95
  5. Step 5: Solve for x
    x = 4,321,398.95/2,772.14
  6. Step 6: Final answer
    x = 1,558.87

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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.