Home / 3,678.96-5,076.15-2,187.36

Finding the Fourth Proportional to 3,678.96, 5,076.15 and 2,187.36

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Solution

The fourth proportional to 3,678.96, 5,076.15 and 2,187.36 is: 3,018.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.96 : 5,076.15 = 2,187.36 : x
  2. Step 2: Convert to fraction form
    3,678.96/5,076.15 = 2,187.36/x
  3. Step 3: Cross multiply
    3,678.96x = 5,076.15 × 2,187.36
  4. Step 4: Simplify right side
    3,678.96x = 11,103,367.46
  5. Step 5: Solve for x
    x = 11,103,367.46/3,678.96
  6. Step 6: Final answer
    x = 3,018.07

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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.