Home / 3,398.36-5,097.84-1,318.31

Finding the Fourth Proportional to 3,398.36, 5,097.84 and 1,318.31

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Solution

The fourth proportional to 3,398.36, 5,097.84 and 1,318.31 is: 1,977.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.36 : 5,097.84 = 1,318.31 : x
  2. Step 2: Convert to fraction form
    3,398.36/5,097.84 = 1,318.31/x
  3. Step 3: Cross multiply
    3,398.36x = 5,097.84 × 1,318.31
  4. Step 4: Simplify right side
    3,398.36x = 6,720,522.13
  5. Step 5: Solve for x
    x = 6,720,522.13/3,398.36
  6. Step 6: Final answer
    x = 1,977.58

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1.5x scale

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.