Home / 5,615.55-8,428.43-2,844.15

Finding the Fourth Proportional to 5,615.55, 8,428.43 and 2,844.15

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Solution

The fourth proportional to 5,615.55, 8,428.43 and 2,844.15 is: 4,268.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.55 : 8,428.43 = 2,844.15 : x
  2. Step 2: Convert to fraction form
    5,615.55/8,428.43 = 2,844.15/x
  3. Step 3: Cross multiply
    5,615.55x = 8,428.43 × 2,844.15
  4. Step 4: Simplify right side
    5,615.55x = 23,971,704.96
  5. Step 5: Solve for x
    x = 23,971,704.96/5,615.55
  6. Step 6: Final answer
    x = 4,268.81

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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.