Home / 7,391.74-11,081.72-4,268.20

Finding the Fourth Proportional to 7,391.74, 11,081.72 and 4,268.20

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Solution

The fourth proportional to 7,391.74, 11,081.72 and 4,268.20 is: 6,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,391.74 : 11,081.72 = 4,268.20 : x
  2. Step 2: Convert to fraction form
    7,391.74/11,081.72 = 4,268.20/x
  3. Step 3: Cross multiply
    7,391.74x = 11,081.72 × 4,268.20
  4. Step 4: Simplify right side
    7,391.74x = 47,298,975.96
  5. Step 5: Solve for x
    x = 47,298,975.96/7,391.74
  6. Step 6: Final answer
    x = 6,398.90

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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.