Home / 5,629.32-7,768.70-3,111.44

Finding the Fourth Proportional to 5,629.32, 7,768.70 and 3,111.44

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Solution

The fourth proportional to 5,629.32, 7,768.70 and 3,111.44 is: 4,293.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.32 : 7,768.70 = 3,111.44 : x
  2. Step 2: Convert to fraction form
    5,629.32/7,768.70 = 3,111.44/x
  3. Step 3: Cross multiply
    5,629.32x = 7,768.70 × 3,111.44
  4. Step 4: Simplify right side
    5,629.32x = 24,171,843.93
  5. Step 5: Solve for x
    x = 24,171,843.93/5,629.32
  6. Step 6: Final answer
    x = 4,293.92

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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.