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Finding the Fourth Proportional to 2,485.37, 3,728.04 and 636.48

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Solution

The fourth proportional to 2,485.37, 3,728.04 and 636.48 is: 954.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.37 : 3,728.04 = 636.48 : x
  2. Step 2: Convert to fraction form
    2,485.37/3,728.04 = 636.48/x
  3. Step 3: Cross multiply
    2,485.37x = 3,728.04 × 636.48
  4. Step 4: Simplify right side
    2,485.37x = 2,372,822.90
  5. Step 5: Solve for x
    x = 2,372,822.90/2,485.37
  6. Step 6: Final answer
    x = 954.72

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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.