Home / 3,762.26-5,640.20-2,119.28

Finding the Fourth Proportional to 3,762.26, 5,640.20 and 2,119.28

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Solution

The fourth proportional to 3,762.26, 5,640.20 and 2,119.28 is: 3,177.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.26 : 5,640.20 = 2,119.28 : x
  2. Step 2: Convert to fraction form
    3,762.26/5,640.20 = 2,119.28/x
  3. Step 3: Cross multiply
    3,762.26x = 5,640.20 × 2,119.28
  4. Step 4: Simplify right side
    3,762.26x = 11,953,182.45
  5. Step 5: Solve for x
    x = 11,953,182.45/3,762.26
  6. Step 6: Final answer
    x = 3,177.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.