Home / 5,120.62-7,674.72-2,343.40

Finding the Fourth Proportional to 5,120.62, 7,674.72 and 2,343.40

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Solution

The fourth proportional to 5,120.62, 7,674.72 and 2,343.40 is: 3,512.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.62 : 7,674.72 = 2,343.40 : x
  2. Step 2: Convert to fraction form
    5,120.62/7,674.72 = 2,343.40/x
  3. Step 3: Cross multiply
    5,120.62x = 7,674.72 × 2,343.40
  4. Step 4: Simplify right side
    5,120.62x = 17,984,938.85
  5. Step 5: Solve for x
    x = 17,984,938.85/5,120.62
  6. Step 6: Final answer
    x = 3,512.26

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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.