Home / 3,785.24-5,220.31-2,650.33

Finding the Fourth Proportional to 3,785.24, 5,220.31 and 2,650.33

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Solution

The fourth proportional to 3,785.24, 5,220.31 and 2,650.33 is: 3,655.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.24 : 5,220.31 = 2,650.33 : x
  2. Step 2: Convert to fraction form
    3,785.24/5,220.31 = 2,650.33/x
  3. Step 3: Cross multiply
    3,785.24x = 5,220.31 × 2,650.33
  4. Step 4: Simplify right side
    3,785.24x = 13,835,504.85
  5. Step 5: Solve for x
    x = 13,835,504.85/3,785.24
  6. Step 6: Final answer
    x = 3,655.12

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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.