Home / 2,220.78-3,063.22-1,335.66

Finding the Fourth Proportional to 2,220.78, 3,063.22 and 1,335.66

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Solution

The fourth proportional to 2,220.78, 3,063.22 and 1,335.66 is: 1,842.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.78 : 3,063.22 = 1,335.66 : x
  2. Step 2: Convert to fraction form
    2,220.78/3,063.22 = 1,335.66/x
  3. Step 3: Cross multiply
    2,220.78x = 3,063.22 × 1,335.66
  4. Step 4: Simplify right side
    2,220.78x = 4,091,405.60
  5. Step 5: Solve for x
    x = 4,091,405.60/2,220.78
  6. Step 6: Final answer
    x = 1,842.33

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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.