Home / 2,757.40-4,137.80-1,113.96

Finding the Fourth Proportional to 2,757.40, 4,137.80 and 1,113.96

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Solution

The fourth proportional to 2,757.40, 4,137.80 and 1,113.96 is: 1,671.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.40 : 4,137.80 = 1,113.96 : x
  2. Step 2: Convert to fraction form
    2,757.40/4,137.80 = 1,113.96/x
  3. Step 3: Cross multiply
    2,757.40x = 4,137.80 × 1,113.96
  4. Step 4: Simplify right side
    2,757.40x = 4,609,343.69
  5. Step 5: Solve for x
    x = 4,609,343.69/2,757.40
  6. Step 6: Final answer
    x = 1,671.63

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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.