Home / 2,228.30-3,072.80-1,343.58

Finding the Fourth Proportional to 2,228.30, 3,072.80 and 1,343.58

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Solution

The fourth proportional to 2,228.30, 3,072.80 and 1,343.58 is: 1,852.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.30 : 3,072.80 = 1,343.58 : x
  2. Step 2: Convert to fraction form
    2,228.30/3,072.80 = 1,343.58/x
  3. Step 3: Cross multiply
    2,228.30x = 3,072.80 × 1,343.58
  4. Step 4: Simplify right side
    2,228.30x = 4,128,552.62
  5. Step 5: Solve for x
    x = 4,128,552.62/2,228.30
  6. Step 6: Final answer
    x = 1,852.78

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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.