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Finding the Fourth Proportional to 6,307.79, 8,704.62 and 3,951.23

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Solution

The fourth proportional to 6,307.79, 8,704.62 and 3,951.23 is: 5,452.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.79 : 8,704.62 = 3,951.23 : x
  2. Step 2: Convert to fraction form
    6,307.79/8,704.62 = 3,951.23/x
  3. Step 3: Cross multiply
    6,307.79x = 8,704.62 × 3,951.23
  4. Step 4: Simplify right side
    6,307.79x = 34,393,955.68
  5. Step 5: Solve for x
    x = 34,393,955.68/6,307.79
  6. Step 6: Final answer
    x = 5,452.62

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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.