Home / 2,080.12-2,866.62-1,489.63

Finding the Fourth Proportional to 2,080.12, 2,866.62 and 1,489.63

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Solution

The fourth proportional to 2,080.12, 2,866.62 and 1,489.63 is: 2,052.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.12 : 2,866.62 = 1,489.63 : x
  2. Step 2: Convert to fraction form
    2,080.12/2,866.62 = 1,489.63/x
  3. Step 3: Cross multiply
    2,080.12x = 2,866.62 × 1,489.63
  4. Step 4: Simplify right side
    2,080.12x = 4,270,188.54
  5. Step 5: Solve for x
    x = 4,270,188.54/2,080.12
  6. Step 6: Final answer
    x = 2,052.86

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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.