Home / 3,398.78-5,095.04-1,320.17

Finding the Fourth Proportional to 3,398.78, 5,095.04 and 1,320.17

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Solution

The fourth proportional to 3,398.78, 5,095.04 and 1,320.17 is: 1,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.78 : 5,095.04 = 1,320.17 : x
  2. Step 2: Convert to fraction form
    3,398.78/5,095.04 = 1,320.17/x
  3. Step 3: Cross multiply
    3,398.78x = 5,095.04 × 1,320.17
  4. Step 4: Simplify right side
    3,398.78x = 6,726,296.78
  5. Step 5: Solve for x
    x = 6,726,296.78/3,398.78
  6. Step 6: Final answer
    x = 1,979.04

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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.