Home / 2,760.46-4,140.59-911.53

Finding the Fourth Proportional to 2,760.46, 4,140.59 and 911.53

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Solution

The fourth proportional to 2,760.46, 4,140.59 and 911.53 is: 1,367.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.46 : 4,140.59 = 911.53 : x
  2. Step 2: Convert to fraction form
    2,760.46/4,140.59 = 911.53/x
  3. Step 3: Cross multiply
    2,760.46x = 4,140.59 × 911.53
  4. Step 4: Simplify right side
    2,760.46x = 3,774,246.74
  5. Step 5: Solve for x
    x = 3,774,246.74/2,760.46
  6. Step 6: Final answer
    x = 1,367.26

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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.