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Finding the Fourth Proportional to 3,762.60, 5,636.88 and 3,150.24

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Solution

The fourth proportional to 3,762.60, 5,636.88 and 3,150.24 is: 4,719.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.60 : 5,636.88 = 3,150.24 : x
  2. Step 2: Convert to fraction form
    3,762.60/5,636.88 = 3,150.24/x
  3. Step 3: Cross multiply
    3,762.60x = 5,636.88 × 3,150.24
  4. Step 4: Simplify right side
    3,762.60x = 17,757,524.85
  5. Step 5: Solve for x
    x = 17,757,524.85/3,762.60
  6. Step 6: Final answer
    x = 4,719.48

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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.