Home / 3,439.40-5,159.91-1,359.51

Finding the Fourth Proportional to 3,439.40, 5,159.91 and 1,359.51

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Solution

The fourth proportional to 3,439.40, 5,159.91 and 1,359.51 is: 2,039.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.40 : 5,159.91 = 1,359.51 : x
  2. Step 2: Convert to fraction form
    3,439.40/5,159.91 = 1,359.51/x
  3. Step 3: Cross multiply
    3,439.40x = 5,159.91 × 1,359.51
  4. Step 4: Simplify right side
    3,439.40x = 7,014,949.24
  5. Step 5: Solve for x
    x = 7,014,949.24/3,439.40
  6. Step 6: Final answer
    x = 2,039.59

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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.