Home / 3,439.64-5,161.50-1,359.86

Finding the Fourth Proportional to 3,439.64, 5,161.50 and 1,359.86

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Solution

The fourth proportional to 3,439.64, 5,161.50 and 1,359.86 is: 2,040.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.64 : 5,161.50 = 1,359.86 : x
  2. Step 2: Convert to fraction form
    3,439.64/5,161.50 = 1,359.86/x
  3. Step 3: Cross multiply
    3,439.64x = 5,161.50 × 1,359.86
  4. Step 4: Simplify right side
    3,439.64x = 7,018,891.58
  5. Step 5: Solve for x
    x = 7,018,891.58/3,439.64
  6. Step 6: Final answer
    x = 2,040.59

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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.