Home / 7,200.91-10,801.37-4,120.75

Finding the Fourth Proportional to 7,200.91, 10,801.37 and 4,120.75

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Solution

The fourth proportional to 7,200.91, 10,801.37 and 4,120.75 is: 6,181.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.91 : 10,801.37 = 4,120.75 : x
  2. Step 2: Convert to fraction form
    7,200.91/10,801.37 = 4,120.75/x
  3. Step 3: Cross multiply
    7,200.91x = 10,801.37 × 4,120.75
  4. Step 4: Simplify right side
    7,200.91x = 44,509,745.43
  5. Step 5: Solve for x
    x = 44,509,745.43/7,200.91
  6. Step 6: Final answer
    x = 6,181.13

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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.