Home / 2,053.92-3,080.88-1,187.76

Finding the Fourth Proportional to 2,053.92, 3,080.88 and 1,187.76

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Solution

The fourth proportional to 2,053.92, 3,080.88 and 1,187.76 is: 1,781.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,053.92 : 3,080.88 = 1,187.76 : x
  2. Step 2: Convert to fraction form
    2,053.92/3,080.88 = 1,187.76/x
  3. Step 3: Cross multiply
    2,053.92x = 3,080.88 × 1,187.76
  4. Step 4: Simplify right side
    2,053.92x = 3,659,346.03
  5. Step 5: Solve for x
    x = 3,659,346.03/2,053.92
  6. Step 6: Final answer
    x = 1,781.64

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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.