Home / 2,220.13-3,066.51-1,663.09

Finding the Fourth Proportional to 2,220.13, 3,066.51 and 1,663.09

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Solution

The fourth proportional to 2,220.13, 3,066.51 and 1,663.09 is: 2,297.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.13 : 3,066.51 = 1,663.09 : x
  2. Step 2: Convert to fraction form
    2,220.13/3,066.51 = 1,663.09/x
  3. Step 3: Cross multiply
    2,220.13x = 3,066.51 × 1,663.09
  4. Step 4: Simplify right side
    2,220.13x = 5,099,882.12
  5. Step 5: Solve for x
    x = 5,099,882.12/2,220.13
  6. Step 6: Final answer
    x = 2,297.11

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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.