Home / 2,220.43-3,060.77-1,660.05

Finding the Fourth Proportional to 2,220.43, 3,060.77 and 1,660.05

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Solution

The fourth proportional to 2,220.43, 3,060.77 and 1,660.05 is: 2,288.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.43 : 3,060.77 = 1,660.05 : x
  2. Step 2: Convert to fraction form
    2,220.43/3,060.77 = 1,660.05/x
  3. Step 3: Cross multiply
    2,220.43x = 3,060.77 × 1,660.05
  4. Step 4: Simplify right side
    2,220.43x = 5,081,020.08
  5. Step 5: Solve for x
    x = 5,081,020.08/2,220.43
  6. Step 6: Final answer
    x = 2,288.30

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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.