Home / 3,809.40-5,257.56-2,629.48

Finding the Fourth Proportional to 3,809.40, 5,257.56 and 2,629.48

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Solution

The fourth proportional to 3,809.40, 5,257.56 and 2,629.48 is: 3,629.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.40 : 5,257.56 = 2,629.48 : x
  2. Step 2: Convert to fraction form
    3,809.40/5,257.56 = 2,629.48/x
  3. Step 3: Cross multiply
    3,809.40x = 5,257.56 × 2,629.48
  4. Step 4: Simplify right side
    3,809.40x = 13,824,648.87
  5. Step 5: Solve for x
    x = 13,824,648.87/3,809.40
  6. Step 6: Final answer
    x = 3,629.09

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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.