Home / 3,782.40-5,222.25-2,896.62

Finding the Fourth Proportional to 3,782.40, 5,222.25 and 2,896.62

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Solution

The fourth proportional to 3,782.40, 5,222.25 and 2,896.62 is: 3,999.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.40 : 5,222.25 = 2,896.62 : x
  2. Step 2: Convert to fraction form
    3,782.40/5,222.25 = 2,896.62/x
  3. Step 3: Cross multiply
    3,782.40x = 5,222.25 × 2,896.62
  4. Step 4: Simplify right side
    3,782.40x = 15,126,873.80
  5. Step 5: Solve for x
    x = 15,126,873.80/3,782.40
  6. Step 6: Final answer
    x = 3,999.28

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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.