Home / 3,388.24-5,080.32-1,439.36

Finding the Fourth Proportional to 3,388.24, 5,080.32 and 1,439.36

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Solution

The fourth proportional to 3,388.24, 5,080.32 and 1,439.36 is: 2,158.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.24 : 5,080.32 = 1,439.36 : x
  2. Step 2: Convert to fraction form
    3,388.24/5,080.32 = 1,439.36/x
  3. Step 3: Cross multiply
    3,388.24x = 5,080.32 × 1,439.36
  4. Step 4: Simplify right side
    3,388.24x = 7,312,409.40
  5. Step 5: Solve for x
    x = 7,312,409.40/3,388.24
  6. Step 6: Final answer
    x = 2,158.17

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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.