Home / 3,809.40-5,714.28-1,344.24

Finding the Fourth Proportional to 3,809.40, 5,714.28 and 1,344.24

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Solution

The fourth proportional to 3,809.40, 5,714.28 and 1,344.24 is: 2,016.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.40 : 5,714.28 = 1,344.24 : x
  2. Step 2: Convert to fraction form
    3,809.40/5,714.28 = 1,344.24/x
  3. Step 3: Cross multiply
    3,809.40x = 5,714.28 × 1,344.24
  4. Step 4: Simplify right side
    3,809.40x = 7,681,363.75
  5. Step 5: Solve for x
    x = 7,681,363.75/3,809.40
  6. Step 6: Final answer
    x = 2,016.42

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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.