Home / 1,910.13-2,865.22-611.60

Finding the Fourth Proportional to 1,910.13, 2,865.22 and 611.60

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Solution

The fourth proportional to 1,910.13, 2,865.22 and 611.60 is: 917.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.13 : 2,865.22 = 611.60 : x
  2. Step 2: Convert to fraction form
    1,910.13/2,865.22 = 611.60/x
  3. Step 3: Cross multiply
    1,910.13x = 2,865.22 × 611.60
  4. Step 4: Simplify right side
    1,910.13x = 1,752,372.25
  5. Step 5: Solve for x
    x = 1,752,372.25/1,910.13
  6. Step 6: Final answer
    x = 917.41

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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.