Home / 3,924.45-5,412.42-2,803.32

Finding the Fourth Proportional to 3,924.45, 5,412.42 and 2,803.32

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Solution

The fourth proportional to 3,924.45, 5,412.42 and 2,803.32 is: 3,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.45 : 5,412.42 = 2,803.32 : x
  2. Step 2: Convert to fraction form
    3,924.45/5,412.42 = 2,803.32/x
  3. Step 3: Cross multiply
    3,924.45x = 5,412.42 × 2,803.32
  4. Step 4: Simplify right side
    3,924.45x = 15,172,745.23
  5. Step 5: Solve for x
    x = 15,172,745.23/3,924.45
  6. Step 6: Final answer
    x = 3,866.21

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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.