Home / 5,704.55-7,872.18-3,186.50

Finding the Fourth Proportional to 5,704.55, 7,872.18 and 3,186.50

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Solution

The fourth proportional to 5,704.55, 7,872.18 and 3,186.50 is: 4,397.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,704.55 : 7,872.18 = 3,186.50 : x
  2. Step 2: Convert to fraction form
    5,704.55/7,872.18 = 3,186.50/x
  3. Step 3: Cross multiply
    5,704.55x = 7,872.18 × 3,186.50
  4. Step 4: Simplify right side
    5,704.55x = 25,084,701.57
  5. Step 5: Solve for x
    x = 25,084,701.57/5,704.55
  6. Step 6: Final answer
    x = 4,397.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.