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Finding the Fourth Proportional to 10,100.60, 15,150.90 and 3,080.60

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Solution

The fourth proportional to 10,100.60, 15,150.90 and 3,080.60 is: 4,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.60 : 15,150.90 = 3,080.60 : x
  2. Step 2: Convert to fraction form
    10,100.60/15,150.90 = 3,080.60/x
  3. Step 3: Cross multiply
    10,100.60x = 15,150.90 × 3,080.60
  4. Step 4: Simplify right side
    10,100.60x = 46,673,862.54
  5. Step 5: Solve for x
    x = 46,673,862.54/10,100.60
  6. Step 6: Final answer
    x = 4,620.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.