Home / 7,449.20-11,181.90-4,168.70

Finding the Fourth Proportional to 7,449.20, 11,181.90 and 4,168.70

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Solution

The fourth proportional to 7,449.20, 11,181.90 and 4,168.70 is: 6,257.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.20 : 11,181.90 = 4,168.70 : x
  2. Step 2: Convert to fraction form
    7,449.20/11,181.90 = 4,168.70/x
  3. Step 3: Cross multiply
    7,449.20x = 11,181.90 × 4,168.70
  4. Step 4: Simplify right side
    7,449.20x = 46,613,986.53
  5. Step 5: Solve for x
    x = 46,613,986.53/7,449.20
  6. Step 6: Final answer
    x = 6,257.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.