Home / 2,612.78-3,918.02-1,226.54

Finding the Fourth Proportional to 2,612.78, 3,918.02 and 1,226.54

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Solution

The fourth proportional to 2,612.78, 3,918.02 and 1,226.54 is: 1,839.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.78 : 3,918.02 = 1,226.54 : x
  2. Step 2: Convert to fraction form
    2,612.78/3,918.02 = 1,226.54/x
  3. Step 3: Cross multiply
    2,612.78x = 3,918.02 × 1,226.54
  4. Step 4: Simplify right side
    2,612.78x = 4,805,582.53
  5. Step 5: Solve for x
    x = 4,805,582.53/2,612.78
  6. Step 6: Final answer
    x = 1,839.26

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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.