Home / 3,638.60-5,019.95-2,380.37

Finding the Fourth Proportional to 3,638.60, 5,019.95 and 2,380.37

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Solution

The fourth proportional to 3,638.60, 5,019.95 and 2,380.37 is: 3,284.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.60 : 5,019.95 = 2,380.37 : x
  2. Step 2: Convert to fraction form
    3,638.60/5,019.95 = 2,380.37/x
  3. Step 3: Cross multiply
    3,638.60x = 5,019.95 × 2,380.37
  4. Step 4: Simplify right side
    3,638.60x = 11,949,301.38
  5. Step 5: Solve for x
    x = 11,949,301.38/3,638.60
  6. Step 6: Final answer
    x = 3,284.04

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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.