Home / 3,609.28-5,412.40-1,143.44

Finding the Fourth Proportional to 3,609.28, 5,412.40 and 1,143.44

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Solution

The fourth proportional to 3,609.28, 5,412.40 and 1,143.44 is: 1,714.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.28 : 5,412.40 = 1,143.44 : x
  2. Step 2: Convert to fraction form
    3,609.28/5,412.40 = 1,143.44/x
  3. Step 3: Cross multiply
    3,609.28x = 5,412.40 × 1,143.44
  4. Step 4: Simplify right side
    3,609.28x = 6,188,754.66
  5. Step 5: Solve for x
    x = 6,188,754.66/3,609.28
  6. Step 6: Final answer
    x = 1,714.68

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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.