Home / 2,220.96-3,331.80-1,066.71

Finding the Fourth Proportional to 2,220.96, 3,331.80 and 1,066.71

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Solution

The fourth proportional to 2,220.96, 3,331.80 and 1,066.71 is: 1,600.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.96 : 3,331.80 = 1,066.71 : x
  2. Step 2: Convert to fraction form
    2,220.96/3,331.80 = 1,066.71/x
  3. Step 3: Cross multiply
    2,220.96x = 3,331.80 × 1,066.71
  4. Step 4: Simplify right side
    2,220.96x = 3,554,064.38
  5. Step 5: Solve for x
    x = 3,554,064.38/2,220.96
  6. Step 6: Final answer
    x = 1,600.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.