Home / 4,155.80-6,233.70-3,621.20

Finding the Fourth Proportional to 4,155.80, 6,233.70 and 3,621.20

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Solution

The fourth proportional to 4,155.80, 6,233.70 and 3,621.20 is: 5,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.80 : 6,233.70 = 3,621.20 : x
  2. Step 2: Convert to fraction form
    4,155.80/6,233.70 = 3,621.20/x
  3. Step 3: Cross multiply
    4,155.80x = 6,233.70 × 3,621.20
  4. Step 4: Simplify right side
    4,155.80x = 22,573,474.44
  5. Step 5: Solve for x
    x = 22,573,474.44/4,155.80
  6. Step 6: Final answer
    x = 5,431.80

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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.