Home / 3,739.89-5,609.63-1,142.63

Finding the Fourth Proportional to 3,739.89, 5,609.63 and 1,142.63

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Solution

The fourth proportional to 3,739.89, 5,609.63 and 1,142.63 is: 1,713.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.89 : 5,609.63 = 1,142.63 : x
  2. Step 2: Convert to fraction form
    3,739.89/5,609.63 = 1,142.63/x
  3. Step 3: Cross multiply
    3,739.89x = 5,609.63 × 1,142.63
  4. Step 4: Simplify right side
    3,739.89x = 6,409,706.34
  5. Step 5: Solve for x
    x = 6,409,706.34/3,739.89
  6. Step 6: Final answer
    x = 1,713.88

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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.