Home / 6,621.44-9,929.22-3,112.44

Finding the Fourth Proportional to 6,621.44, 9,929.22 and 3,112.44

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Solution

The fourth proportional to 6,621.44, 9,929.22 and 3,112.44 is: 4,667.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.44 : 9,929.22 = 3,112.44 : x
  2. Step 2: Convert to fraction form
    6,621.44/9,929.22 = 3,112.44/x
  3. Step 3: Cross multiply
    6,621.44x = 9,929.22 × 3,112.44
  4. Step 4: Simplify right side
    6,621.44x = 30,904,101.50
  5. Step 5: Solve for x
    x = 30,904,101.50/6,621.44
  6. Step 6: Final answer
    x = 4,667.28

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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.