Home / 3,640.60-4,956.40-3,608.20

Finding the Fourth Proportional to 3,640.60, 4,956.40 and 3,608.20

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Solution

The fourth proportional to 3,640.60, 4,956.40 and 3,608.20 is: 4,912.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.60 : 4,956.40 = 3,608.20 : x
  2. Step 2: Convert to fraction form
    3,640.60/4,956.40 = 3,608.20/x
  3. Step 3: Cross multiply
    3,640.60x = 4,956.40 × 3,608.20
  4. Step 4: Simplify right side
    3,640.60x = 17,883,682.48
  5. Step 5: Solve for x
    x = 17,883,682.48/3,640.60
  6. Step 6: Final answer
    x = 4,912.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.