Home / 2,221.88-3,066.20-1,227.23

Finding the Fourth Proportional to 2,221.88, 3,066.20 and 1,227.23

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Solution

The fourth proportional to 2,221.88, 3,066.20 and 1,227.23 is: 1,693.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.88 : 3,066.20 = 1,227.23 : x
  2. Step 2: Convert to fraction form
    2,221.88/3,066.20 = 1,227.23/x
  3. Step 3: Cross multiply
    2,221.88x = 3,066.20 × 1,227.23
  4. Step 4: Simplify right side
    2,221.88x = 3,762,919.71
  5. Step 5: Solve for x
    x = 3,762,919.71/2,221.88
  6. Step 6: Final answer
    x = 1,693.57

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Half scale
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Double scale
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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.