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Finding the Fourth Proportional to 6,343.07, 8,750.46 and 4,219.64

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Solution

The fourth proportional to 6,343.07, 8,750.46 and 4,219.64 is: 5,821.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,343.07 : 8,750.46 = 4,219.64 : x
  2. Step 2: Convert to fraction form
    6,343.07/8,750.46 = 4,219.64/x
  3. Step 3: Cross multiply
    6,343.07x = 8,750.46 × 4,219.64
  4. Step 4: Simplify right side
    6,343.07x = 36,923,791.03
  5. Step 5: Solve for x
    x = 36,923,791.03/6,343.07
  6. Step 6: Final answer
    x = 5,821.12

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1.5x scale

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.