Home / 3,520.66-5,282.20-1,330.02

Finding the Fourth Proportional to 3,520.66, 5,282.20 and 1,330.02

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Solution

The fourth proportional to 3,520.66, 5,282.20 and 1,330.02 is: 1,995.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.66 : 5,282.20 = 1,330.02 : x
  2. Step 2: Convert to fraction form
    3,520.66/5,282.20 = 1,330.02/x
  3. Step 3: Cross multiply
    3,520.66x = 5,282.20 × 1,330.02
  4. Step 4: Simplify right side
    3,520.66x = 7,025,431.64
  5. Step 5: Solve for x
    x = 7,025,431.64/3,520.66
  6. Step 6: Final answer
    x = 1,995.49

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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.