Home / 4,921.28-6,791.40-2,683.22

Finding the Fourth Proportional to 4,921.28, 6,791.40 and 2,683.22

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Solution

The fourth proportional to 4,921.28, 6,791.40 and 2,683.22 is: 3,702.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.28 : 6,791.40 = 2,683.22 : x
  2. Step 2: Convert to fraction form
    4,921.28/6,791.40 = 2,683.22/x
  3. Step 3: Cross multiply
    4,921.28x = 6,791.40 × 2,683.22
  4. Step 4: Simplify right side
    4,921.28x = 18,222,820.31
  5. Step 5: Solve for x
    x = 18,222,820.31/4,921.28
  6. Step 6: Final answer
    x = 3,702.86

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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.