Home / 3,680.41-5,076.70-2,187.31

Finding the Fourth Proportional to 3,680.41, 5,076.70 and 2,187.31

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Solution

The fourth proportional to 3,680.41, 5,076.70 and 2,187.31 is: 3,017.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.41 : 5,076.70 = 2,187.31 : x
  2. Step 2: Convert to fraction form
    3,680.41/5,076.70 = 2,187.31/x
  3. Step 3: Cross multiply
    3,680.41x = 5,076.70 × 2,187.31
  4. Step 4: Simplify right side
    3,680.41x = 11,104,316.68
  5. Step 5: Solve for x
    x = 11,104,316.68/3,680.41
  6. Step 6: Final answer
    x = 3,017.14

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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.