Home / 3,740.40-5,611.14-1,143.54

Finding the Fourth Proportional to 3,740.40, 5,611.14 and 1,143.54

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Solution

The fourth proportional to 3,740.40, 5,611.14 and 1,143.54 is: 1,715.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.40 : 5,611.14 = 1,143.54 : x
  2. Step 2: Convert to fraction form
    3,740.40/5,611.14 = 1,143.54/x
  3. Step 3: Cross multiply
    3,740.40x = 5,611.14 × 1,143.54
  4. Step 4: Simplify right side
    3,740.40x = 6,416,563.04
  5. Step 5: Solve for x
    x = 6,416,563.04/3,740.40
  6. Step 6: Final answer
    x = 1,715.48

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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.