Home / 5,621.56-7,757.82-3,137.56

Finding the Fourth Proportional to 5,621.56, 7,757.82 and 3,137.56

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Solution

The fourth proportional to 5,621.56, 7,757.82 and 3,137.56 is: 4,329.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.56 : 7,757.82 = 3,137.56 : x
  2. Step 2: Convert to fraction form
    5,621.56/7,757.82 = 3,137.56/x
  3. Step 3: Cross multiply
    5,621.56x = 7,757.82 × 3,137.56
  4. Step 4: Simplify right side
    5,621.56x = 24,340,625.72
  5. Step 5: Solve for x
    x = 24,340,625.72/5,621.56
  6. Step 6: Final answer
    x = 4,329.87

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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.