Home / 3,521.64-5,281.38-1,330.86

Finding the Fourth Proportional to 3,521.64, 5,281.38 and 1,330.86

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Solution

The fourth proportional to 3,521.64, 5,281.38 and 1,330.86 is: 1,995.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.64 : 5,281.38 = 1,330.86 : x
  2. Step 2: Convert to fraction form
    3,521.64/5,281.38 = 1,330.86/x
  3. Step 3: Cross multiply
    3,521.64x = 5,281.38 × 1,330.86
  4. Step 4: Simplify right side
    3,521.64x = 7,028,777.39
  5. Step 5: Solve for x
    x = 7,028,777.39/3,521.64
  6. Step 6: Final answer
    x = 1,995.88

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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.