Home / 3,678.51-5,076.41-2,261.64

Finding the Fourth Proportional to 3,678.51, 5,076.41 and 2,261.64

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Solution

The fourth proportional to 3,678.51, 5,076.41 and 2,261.64 is: 3,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.51 : 5,076.41 = 2,261.64 : x
  2. Step 2: Convert to fraction form
    3,678.51/5,076.41 = 2,261.64/x
  3. Step 3: Cross multiply
    3,678.51x = 5,076.41 × 2,261.64
  4. Step 4: Simplify right side
    3,678.51x = 11,481,000.60
  5. Step 5: Solve for x
    x = 11,481,000.60/3,678.51
  6. Step 6: Final answer
    x = 3,121.10

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1.5x scale

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.