Home / 4,439.21-6,120.41-3,639.60

Finding the Fourth Proportional to 4,439.21, 6,120.41 and 3,639.60

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Solution

The fourth proportional to 4,439.21, 6,120.41 and 3,639.60 is: 5,017.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,439.21 : 6,120.41 = 3,639.60 : x
  2. Step 2: Convert to fraction form
    4,439.21/6,120.41 = 3,639.60/x
  3. Step 3: Cross multiply
    4,439.21x = 6,120.41 × 3,639.60
  4. Step 4: Simplify right side
    4,439.21x = 22,275,826.04
  5. Step 5: Solve for x
    x = 22,275,826.04/4,439.21
  6. Step 6: Final answer
    x = 5,017.98

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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.