Home / 3,765.89-5,644.21-2,729.45

Finding the Fourth Proportional to 3,765.89, 5,644.21 and 2,729.45

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Solution

The fourth proportional to 3,765.89, 5,644.21 and 2,729.45 is: 4,090.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.89 : 5,644.21 = 2,729.45 : x
  2. Step 2: Convert to fraction form
    3,765.89/5,644.21 = 2,729.45/x
  3. Step 3: Cross multiply
    3,765.89x = 5,644.21 × 2,729.45
  4. Step 4: Simplify right side
    3,765.89x = 15,405,561.96
  5. Step 5: Solve for x
    x = 15,405,561.96/3,765.89
  6. Step 6: Final answer
    x = 4,090.81

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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.