Home / 3,142.62-4,339.44-2,621.39

Finding the Fourth Proportional to 3,142.62, 4,339.44 and 2,621.39

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Solution

The fourth proportional to 3,142.62, 4,339.44 and 2,621.39 is: 3,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.62 : 4,339.44 = 2,621.39 : x
  2. Step 2: Convert to fraction form
    3,142.62/4,339.44 = 2,621.39/x
  3. Step 3: Cross multiply
    3,142.62x = 4,339.44 × 2,621.39
  4. Step 4: Simplify right side
    3,142.62x = 11,375,342.92
  5. Step 5: Solve for x
    x = 11,375,342.92/3,142.62
  6. Step 6: Final answer
    x = 3,619.70

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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.