Home / 1,760.80-2,645.28-1,104.70

Finding the Fourth Proportional to 1,760.80, 2,645.28 and 1,104.70

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Solution

The fourth proportional to 1,760.80, 2,645.28 and 1,104.70 is: 1,659.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760.80 : 2,645.28 = 1,104.70 : x
  2. Step 2: Convert to fraction form
    1,760.80/2,645.28 = 1,104.70/x
  3. Step 3: Cross multiply
    1,760.80x = 2,645.28 × 1,104.70
  4. Step 4: Simplify right side
    1,760.80x = 2,922,240.82
  5. Step 5: Solve for x
    x = 2,922,240.82/1,760.80
  6. Step 6: Final answer
    x = 1,659.61

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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.