Home / 4,942.25-6,820.31-3,079.25

Finding the Fourth Proportional to 4,942.25, 6,820.31 and 3,079.25

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Solution

The fourth proportional to 4,942.25, 6,820.31 and 3,079.25 is: 4,249.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.25 : 6,820.31 = 3,079.25 : x
  2. Step 2: Convert to fraction form
    4,942.25/6,820.31 = 3,079.25/x
  3. Step 3: Cross multiply
    4,942.25x = 6,820.31 × 3,079.25
  4. Step 4: Simplify right side
    4,942.25x = 21,001,424.17
  5. Step 5: Solve for x
    x = 21,001,424.17/4,942.25
  6. Step 6: Final answer
    x = 4,249.37

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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.