Home / 3,670.20-5,505.84-1,330.38

Finding the Fourth Proportional to 3,670.20, 5,505.84 and 1,330.38

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Solution

The fourth proportional to 3,670.20, 5,505.84 and 1,330.38 is: 1,995.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.20 : 5,505.84 = 1,330.38 : x
  2. Step 2: Convert to fraction form
    3,670.20/5,505.84 = 1,330.38/x
  3. Step 3: Cross multiply
    3,670.20x = 5,505.84 × 1,330.38
  4. Step 4: Simplify right side
    3,670.20x = 7,324,859.42
  5. Step 5: Solve for x
    x = 7,324,859.42/3,670.20
  6. Step 6: Final answer
    x = 1,995.77

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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.