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Finding the Fourth Proportional to 6,988.64, 10,479.71 and 2,604.92

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Solution

The fourth proportional to 6,988.64, 10,479.71 and 2,604.92 is: 3,906.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.64 : 10,479.71 = 2,604.92 : x
  2. Step 2: Convert to fraction form
    6,988.64/10,479.71 = 2,604.92/x
  3. Step 3: Cross multiply
    6,988.64x = 10,479.71 × 2,604.92
  4. Step 4: Simplify right side
    6,988.64x = 27,298,760.29
  5. Step 5: Solve for x
    x = 27,298,760.29/6,988.64
  6. Step 6: Final answer
    x = 3,906.16

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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.