Home / 3,389.53-5,080.39-1,308.62

Finding the Fourth Proportional to 3,389.53, 5,080.39 and 1,308.62

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Solution

The fourth proportional to 3,389.53, 5,080.39 and 1,308.62 is: 1,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.53 : 5,080.39 = 1,308.62 : x
  2. Step 2: Convert to fraction form
    3,389.53/5,080.39 = 1,308.62/x
  3. Step 3: Cross multiply
    3,389.53x = 5,080.39 × 1,308.62
  4. Step 4: Simplify right side
    3,389.53x = 6,648,271.29
  5. Step 5: Solve for x
    x = 6,648,271.29/3,389.53
  6. Step 6: Final answer
    x = 1,961.42

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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.