Home / 3,721.47-5,135.46-2,230.22

Finding the Fourth Proportional to 3,721.47, 5,135.46 and 2,230.22

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Solution

The fourth proportional to 3,721.47, 5,135.46 and 2,230.22 is: 3,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.47 : 5,135.46 = 2,230.22 : x
  2. Step 2: Convert to fraction form
    3,721.47/5,135.46 = 2,230.22/x
  3. Step 3: Cross multiply
    3,721.47x = 5,135.46 × 2,230.22
  4. Step 4: Simplify right side
    3,721.47x = 11,453,179.92
  5. Step 5: Solve for x
    x = 11,453,179.92/3,721.47
  6. Step 6: Final answer
    x = 3,077.60

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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.