Home / 3,686.19-5,087.12-2,174.60

Finding the Fourth Proportional to 3,686.19, 5,087.12 and 2,174.60

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Solution

The fourth proportional to 3,686.19, 5,087.12 and 2,174.60 is: 3,001.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.19 : 5,087.12 = 2,174.60 : x
  2. Step 2: Convert to fraction form
    3,686.19/5,087.12 = 2,174.60/x
  3. Step 3: Cross multiply
    3,686.19x = 5,087.12 × 2,174.60
  4. Step 4: Simplify right side
    3,686.19x = 11,062,414.84
  5. Step 5: Solve for x
    x = 11,062,414.84/3,686.19
  6. Step 6: Final answer
    x = 3,001.04

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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.