Home / 7,278.91-10,910.58-3,765.38

Finding the Fourth Proportional to 7,278.91, 10,910.58 and 3,765.38

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Solution

The fourth proportional to 7,278.91, 10,910.58 and 3,765.38 is: 5,644.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.91 : 10,910.58 = 3,765.38 : x
  2. Step 2: Convert to fraction form
    7,278.91/10,910.58 = 3,765.38/x
  3. Step 3: Cross multiply
    7,278.91x = 10,910.58 × 3,765.38
  4. Step 4: Simplify right side
    7,278.91x = 41,082,521.12
  5. Step 5: Solve for x
    x = 41,082,521.12/7,278.91
  6. Step 6: Final answer
    x = 5,644.05

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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.