Home / 4,220.38-5,825.96-2,900.89

Finding the Fourth Proportional to 4,220.38, 5,825.96 and 2,900.89

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Solution

The fourth proportional to 4,220.38, 5,825.96 and 2,900.89 is: 4,004.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.38 : 5,825.96 = 2,900.89 : x
  2. Step 2: Convert to fraction form
    4,220.38/5,825.96 = 2,900.89/x
  3. Step 3: Cross multiply
    4,220.38x = 5,825.96 × 2,900.89
  4. Step 4: Simplify right side
    4,220.38x = 16,900,469.10
  5. Step 5: Solve for x
    x = 16,900,469.10/4,220.38
  6. Step 6: Final answer
    x = 4,004.49

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Half scale
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Double 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.