Home / 1,844.96-2,767.68-612.80

Finding the Fourth Proportional to 1,844.96, 2,767.68 and 612.80

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Solution

The fourth proportional to 1,844.96, 2,767.68 and 612.80 is: 919.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,844.96 : 2,767.68 = 612.80 : x
  2. Step 2: Convert to fraction form
    1,844.96/2,767.68 = 612.80/x
  3. Step 3: Cross multiply
    1,844.96x = 2,767.68 × 612.80
  4. Step 4: Simplify right side
    1,844.96x = 1,696,034.30
  5. Step 5: Solve for x
    x = 1,696,034.30/1,844.96
  6. Step 6: Final answer
    x = 919.28

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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.