Home / 4,001.78-5,522.42-2,209.28

Finding the Fourth Proportional to 4,001.78, 5,522.42 and 2,209.28

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Solution

The fourth proportional to 4,001.78, 5,522.42 and 2,209.28 is: 3,048.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,001.78 : 5,522.42 = 2,209.28 : x
  2. Step 2: Convert to fraction form
    4,001.78/5,522.42 = 2,209.28/x
  3. Step 3: Cross multiply
    4,001.78x = 5,522.42 × 2,209.28
  4. Step 4: Simplify right side
    4,001.78x = 12,200,533.40
  5. Step 5: Solve for x
    x = 12,200,533.40/4,001.78
  6. Step 6: Final answer
    x = 3,048.78

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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.