Home / 3,735.80-5,160.78-3,620.60

Finding the Fourth Proportional to 3,735.80, 5,160.78 and 3,620.60

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Solution

The fourth proportional to 3,735.80, 5,160.78 and 3,620.60 is: 5,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,735.80 : 5,160.78 = 3,620.60 : x
  2. Step 2: Convert to fraction form
    3,735.80/5,160.78 = 3,620.60/x
  3. Step 3: Cross multiply
    3,735.80x = 5,160.78 × 3,620.60
  4. Step 4: Simplify right side
    3,735.80x = 18,685,120.07
  5. Step 5: Solve for x
    x = 18,685,120.07/3,735.80
  6. Step 6: Final answer
    x = 5,001.64

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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.