Home / 3,712.56-5,121.59-2,220.33

Finding the Fourth Proportional to 3,712.56, 5,121.59 and 2,220.33

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Solution

The fourth proportional to 3,712.56, 5,121.59 and 2,220.33 is: 3,063.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.56 : 5,121.59 = 2,220.33 : x
  2. Step 2: Convert to fraction form
    3,712.56/5,121.59 = 2,220.33/x
  3. Step 3: Cross multiply
    3,712.56x = 5,121.59 × 2,220.33
  4. Step 4: Simplify right side
    3,712.56x = 11,371,619.92
  5. Step 5: Solve for x
    x = 11,371,619.92/3,712.56
  6. Step 6: Final answer
    x = 3,063.01

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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.