Home / 6,621.42-9,137.04-3,788.86

Finding the Fourth Proportional to 6,621.42, 9,137.04 and 3,788.86

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Solution

The fourth proportional to 6,621.42, 9,137.04 and 3,788.86 is: 5,228.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.42 : 9,137.04 = 3,788.86 : x
  2. Step 2: Convert to fraction form
    6,621.42/9,137.04 = 3,788.86/x
  3. Step 3: Cross multiply
    6,621.42x = 9,137.04 × 3,788.86
  4. Step 4: Simplify right side
    6,621.42x = 34,618,965.37
  5. Step 5: Solve for x
    x = 34,618,965.37/6,621.42
  6. Step 6: Final answer
    x = 5,228.33

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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.