Home / 3,740.43-5,611.37-1,431.75

Finding the Fourth Proportional to 3,740.43, 5,611.37 and 1,431.75

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Solution

The fourth proportional to 3,740.43, 5,611.37 and 1,431.75 is: 2,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.43 : 5,611.37 = 1,431.75 : x
  2. Step 2: Convert to fraction form
    3,740.43/5,611.37 = 1,431.75/x
  3. Step 3: Cross multiply
    3,740.43x = 5,611.37 × 1,431.75
  4. Step 4: Simplify right side
    3,740.43x = 8,034,071.84
  5. Step 5: Solve for x
    x = 8,034,071.84/3,740.43
  6. Step 6: Final answer
    x = 2,147.90

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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.