Home / 2,222.40-3,062.40-2,105.28

Finding the Fourth Proportional to 2,222.40, 3,062.40 and 2,105.28

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Solution

The fourth proportional to 2,222.40, 3,062.40 and 2,105.28 is: 2,901.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.40 : 3,062.40 = 2,105.28 : x
  2. Step 2: Convert to fraction form
    2,222.40/3,062.40 = 2,105.28/x
  3. Step 3: Cross multiply
    2,222.40x = 3,062.40 × 2,105.28
  4. Step 4: Simplify right side
    2,222.40x = 6,447,209.47
  5. Step 5: Solve for x
    x = 6,447,209.47/2,222.40
  6. Step 6: Final answer
    x = 2,901.01

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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.