Home / 7,279.29-10,911.14-3,765.76

Finding the Fourth Proportional to 7,279.29, 10,911.14 and 3,765.76

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Solution

The fourth proportional to 7,279.29, 10,911.14 and 3,765.76 is: 5,644.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.29 : 10,911.14 = 3,765.76 : x
  2. Step 2: Convert to fraction form
    7,279.29/10,911.14 = 3,765.76/x
  3. Step 3: Cross multiply
    7,279.29x = 10,911.14 × 3,765.76
  4. Step 4: Simplify right side
    7,279.29x = 41,088,716.70
  5. Step 5: Solve for x
    x = 41,088,716.70/7,279.29
  6. Step 6: Final answer
    x = 5,644.60

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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.