Home / 7,439.23-11,161.88-3,279.07

Finding the Fourth Proportional to 7,439.23, 11,161.88 and 3,279.07

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Solution

The fourth proportional to 7,439.23, 11,161.88 and 3,279.07 is: 4,919.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.23 : 11,161.88 = 3,279.07 : x
  2. Step 2: Convert to fraction form
    7,439.23/11,161.88 = 3,279.07/x
  3. Step 3: Cross multiply
    7,439.23x = 11,161.88 × 3,279.07
  4. Step 4: Simplify right side
    7,439.23x = 36,600,585.85
  5. Step 5: Solve for x
    x = 36,600,585.85/7,439.23
  6. Step 6: Final answer
    x = 4,919.94

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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.