Home / 3,680.20-5,076.89-2,187.06

Finding the Fourth Proportional to 3,680.20, 5,076.89 and 2,187.06

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Solution

The fourth proportional to 3,680.20, 5,076.89 and 2,187.06 is: 3,017.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.20 : 5,076.89 = 2,187.06 : x
  2. Step 2: Convert to fraction form
    3,680.20/5,076.89 = 2,187.06/x
  3. Step 3: Cross multiply
    3,680.20x = 5,076.89 × 2,187.06
  4. Step 4: Simplify right side
    3,680.20x = 11,103,463.04
  5. Step 5: Solve for x
    x = 11,103,463.04/3,680.20
  6. Step 6: Final answer
    x = 3,017.08

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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.