Home / 4,128.62-5,697.48-2,240.21

Finding the Fourth Proportional to 4,128.62, 5,697.48 and 2,240.21

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Solution

The fourth proportional to 4,128.62, 5,697.48 and 2,240.21 is: 3,091.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.62 : 5,697.48 = 2,240.21 : x
  2. Step 2: Convert to fraction form
    4,128.62/5,697.48 = 2,240.21/x
  3. Step 3: Cross multiply
    4,128.62x = 5,697.48 × 2,240.21
  4. Step 4: Simplify right side
    4,128.62x = 12,763,551.67
  5. Step 5: Solve for x
    x = 12,763,551.67/4,128.62
  6. Step 6: Final answer
    x = 3,091.48

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Half scale
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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.