Home / 3,686.81-5,087.46-2,195.09

Finding the Fourth Proportional to 3,686.81, 5,087.46 and 2,195.09

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Solution

The fourth proportional to 3,686.81, 5,087.46 and 2,195.09 is: 3,029.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.81 : 5,087.46 = 2,195.09 : x
  2. Step 2: Convert to fraction form
    3,686.81/5,087.46 = 2,195.09/x
  3. Step 3: Cross multiply
    3,686.81x = 5,087.46 × 2,195.09
  4. Step 4: Simplify right side
    3,686.81x = 11,167,432.57
  5. Step 5: Solve for x
    x = 11,167,432.57/3,686.81
  6. Step 6: Final answer
    x = 3,029.02

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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.