Home / 1,844.70-2,765.90-611.80

Finding the Fourth Proportional to 1,844.70, 2,765.90 and 611.80

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Solution

The fourth proportional to 1,844.70, 2,765.90 and 611.80 is: 917.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,844.70 : 2,765.90 = 611.80 : x
  2. Step 2: Convert to fraction form
    1,844.70/2,765.90 = 611.80/x
  3. Step 3: Cross multiply
    1,844.70x = 2,765.90 × 611.80
  4. Step 4: Simplify right side
    1,844.70x = 1,692,177.62
  5. Step 5: Solve for x
    x = 1,692,177.62/1,844.70
  6. Step 6: Final answer
    x = 917.32

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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.