Home / 5,691.13-7,853.36-3,173.13

Finding the Fourth Proportional to 5,691.13, 7,853.36 and 3,173.13

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Solution

The fourth proportional to 5,691.13, 7,853.36 and 3,173.13 is: 4,378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.13 : 7,853.36 = 3,173.13 : x
  2. Step 2: Convert to fraction form
    5,691.13/7,853.36 = 3,173.13/x
  3. Step 3: Cross multiply
    5,691.13x = 7,853.36 × 3,173.13
  4. Step 4: Simplify right side
    5,691.13x = 24,919,716.35
  5. Step 5: Solve for x
    x = 24,919,716.35/5,691.13
  6. Step 6: Final answer
    x = 4,378.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.