Home / 2,162.13-2,982.62-1,276.39

Finding the Fourth Proportional to 2,162.13, 2,982.62 and 1,276.39

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Solution

The fourth proportional to 2,162.13, 2,982.62 and 1,276.39 is: 1,760.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.13 : 2,982.62 = 1,276.39 : x
  2. Step 2: Convert to fraction form
    2,162.13/2,982.62 = 1,276.39/x
  3. Step 3: Cross multiply
    2,162.13x = 2,982.62 × 1,276.39
  4. Step 4: Simplify right side
    2,162.13x = 3,806,993.26
  5. Step 5: Solve for x
    x = 3,806,993.26/2,162.13
  6. Step 6: Final answer
    x = 1,760.76

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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.