Home / 2,221.93-3,066.21-1,227.22

Finding the Fourth Proportional to 2,221.93, 3,066.21 and 1,227.22

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Solution

The fourth proportional to 2,221.93, 3,066.21 and 1,227.22 is: 1,693.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.93 : 3,066.21 = 1,227.22 : x
  2. Step 2: Convert to fraction form
    2,221.93/3,066.21 = 1,227.22/x
  3. Step 3: Cross multiply
    2,221.93x = 3,066.21 × 1,227.22
  4. Step 4: Simplify right side
    2,221.93x = 3,762,914.24
  5. Step 5: Solve for x
    x = 3,762,914.24/2,221.93
  6. Step 6: Final answer
    x = 1,693.53

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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.