Home / 6,621.57-9,135.22-3,788.37

Finding the Fourth Proportional to 6,621.57, 9,135.22 and 3,788.37

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Solution

The fourth proportional to 6,621.57, 9,135.22 and 3,788.37 is: 5,226.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.57 : 9,135.22 = 3,788.37 : x
  2. Step 2: Convert to fraction form
    6,621.57/9,135.22 = 3,788.37/x
  3. Step 3: Cross multiply
    6,621.57x = 9,135.22 × 3,788.37
  4. Step 4: Simplify right side
    6,621.57x = 34,607,593.39
  5. Step 5: Solve for x
    x = 34,607,593.39/6,621.57
  6. Step 6: Final answer
    x = 5,226.49

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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.