Home / 2,757.32-4,136.78-1,113.02

Finding the Fourth Proportional to 2,757.32, 4,136.78 and 1,113.02

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Solution

The fourth proportional to 2,757.32, 4,136.78 and 1,113.02 is: 1,669.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.32 : 4,136.78 = 1,113.02 : x
  2. Step 2: Convert to fraction form
    2,757.32/4,136.78 = 1,113.02/x
  3. Step 3: Cross multiply
    2,757.32x = 4,136.78 × 1,113.02
  4. Step 4: Simplify right side
    2,757.32x = 4,604,318.88
  5. Step 5: Solve for x
    x = 4,604,318.88/2,757.32
  6. Step 6: Final answer
    x = 1,669.85

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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.