Home / 7,474.06-11,212.70-2,279.80

Finding the Fourth Proportional to 7,474.06, 11,212.70 and 2,279.80

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Solution

The fourth proportional to 7,474.06, 11,212.70 and 2,279.80 is: 3,420.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.06 : 11,212.70 = 2,279.80 : x
  2. Step 2: Convert to fraction form
    7,474.06/11,212.70 = 2,279.80/x
  3. Step 3: Cross multiply
    7,474.06x = 11,212.70 × 2,279.80
  4. Step 4: Simplify right side
    7,474.06x = 25,562,713.46
  5. Step 5: Solve for x
    x = 25,562,713.46/7,474.06
  6. Step 6: Final answer
    x = 3,420.19

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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.