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Finding the Fourth Proportional to 2,757.46, 4,136.16 and 1,113.98

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Solution

The fourth proportional to 2,757.46, 4,136.16 and 1,113.98 is: 1,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.46 : 4,136.16 = 1,113.98 : x
  2. Step 2: Convert to fraction form
    2,757.46/4,136.16 = 1,113.98/x
  3. Step 3: Cross multiply
    2,757.46x = 4,136.16 × 1,113.98
  4. Step 4: Simplify right side
    2,757.46x = 4,607,594.65
  5. Step 5: Solve for x
    x = 4,607,594.65/2,757.46
  6. Step 6: Final answer
    x = 1,670.96

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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.