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Finding the Fourth Proportional to 6,615.54, 9,922.96 and 1,684.88

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Solution

The fourth proportional to 6,615.54, 9,922.96 and 1,684.88 is: 2,527.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.54 : 9,922.96 = 1,684.88 : x
  2. Step 2: Convert to fraction form
    6,615.54/9,922.96 = 1,684.88/x
  3. Step 3: Cross multiply
    6,615.54x = 9,922.96 × 1,684.88
  4. Step 4: Simplify right side
    6,615.54x = 16,718,986.55
  5. Step 5: Solve for x
    x = 16,718,986.55/6,615.54
  6. Step 6: Final answer
    x = 2,527.23

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1.5x scale

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.