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Finding the Fourth Proportional to 6,988.76, 10,480.44 and 2,827.70

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Solution

The fourth proportional to 6,988.76, 10,480.44 and 2,827.70 is: 4,240.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.76 : 10,480.44 = 2,827.70 : x
  2. Step 2: Convert to fraction form
    6,988.76/10,480.44 = 2,827.70/x
  3. Step 3: Cross multiply
    6,988.76x = 10,480.44 × 2,827.70
  4. Step 4: Simplify right side
    6,988.76x = 29,635,540.19
  5. Step 5: Solve for x
    x = 29,635,540.19/6,988.76
  6. Step 6: Final answer
    x = 4,240.46

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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.