Home / 2,621.28-3,928.32-2,041.44

Finding the Fourth Proportional to 2,621.28, 3,928.32 and 2,041.44

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Solution

The fourth proportional to 2,621.28, 3,928.32 and 2,041.44 is: 3,059.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.28 : 3,928.32 = 2,041.44 : x
  2. Step 2: Convert to fraction form
    2,621.28/3,928.32 = 2,041.44/x
  3. Step 3: Cross multiply
    2,621.28x = 3,928.32 × 2,041.44
  4. Step 4: Simplify right side
    2,621.28x = 8,019,429.58
  5. Step 5: Solve for x
    x = 8,019,429.58/2,621.28
  6. Step 6: Final answer
    x = 3,059.36

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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.