Home / 4,921.38-6,791.56-2,683.24

Finding the Fourth Proportional to 4,921.38, 6,791.56 and 2,683.24

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Solution

The fourth proportional to 4,921.38, 6,791.56 and 2,683.24 is: 3,702.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.38 : 6,791.56 = 2,683.24 : x
  2. Step 2: Convert to fraction form
    4,921.38/6,791.56 = 2,683.24/x
  3. Step 3: Cross multiply
    4,921.38x = 6,791.56 × 2,683.24
  4. Step 4: Simplify right side
    4,921.38x = 18,223,361.77
  5. Step 5: Solve for x
    x = 18,223,361.77/4,921.38
  6. Step 6: Final answer
    x = 3,702.90

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Double scale
Find fourth proportional to 4,922.38, 6,792.94 and 2,684.24
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.