Home / 2,908.83-4,015.35-1,790.22

Finding the Fourth Proportional to 2,908.83, 4,015.35 and 1,790.22

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Solution

The fourth proportional to 2,908.83, 4,015.35 and 1,790.22 is: 2,471.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.83 : 4,015.35 = 1,790.22 : x
  2. Step 2: Convert to fraction form
    2,908.83/4,015.35 = 1,790.22/x
  3. Step 3: Cross multiply
    2,908.83x = 4,015.35 × 1,790.22
  4. Step 4: Simplify right side
    2,908.83x = 7,188,359.88
  5. Step 5: Solve for x
    x = 7,188,359.88/2,908.83
  6. Step 6: Final answer
    x = 2,471.22

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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.