Home / 4,103.78-5,661.41-2,777.02

Finding the Fourth Proportional to 4,103.78, 5,661.41 and 2,777.02

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Solution

The fourth proportional to 4,103.78, 5,661.41 and 2,777.02 is: 3,831.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,103.78 : 5,661.41 = 2,777.02 : x
  2. Step 2: Convert to fraction form
    4,103.78/5,661.41 = 2,777.02/x
  3. Step 3: Cross multiply
    4,103.78x = 5,661.41 × 2,777.02
  4. Step 4: Simplify right side
    4,103.78x = 15,721,848.80
  5. Step 5: Solve for x
    x = 15,721,848.80/4,103.78
  6. Step 6: Final answer
    x = 3,831.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.