Home / 3,678.30-5,076.27-2,186.28

Finding the Fourth Proportional to 3,678.30, 5,076.27 and 2,186.28

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Solution

The fourth proportional to 3,678.30, 5,076.27 and 2,186.28 is: 3,017.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.30 : 5,076.27 = 2,186.28 : x
  2. Step 2: Convert to fraction form
    3,678.30/5,076.27 = 2,186.28/x
  3. Step 3: Cross multiply
    3,678.30x = 5,076.27 × 2,186.28
  4. Step 4: Simplify right side
    3,678.30x = 11,098,147.58
  5. Step 5: Solve for x
    x = 11,098,147.58/3,678.30
  6. Step 6: Final answer
    x = 3,017.19

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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.