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Finding the Fourth Proportional to 6,630.76, 9,148.26 and 3,834.28

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Solution

The fourth proportional to 6,630.76, 9,148.26 and 3,834.28 is: 5,290.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.76 : 9,148.26 = 3,834.28 : x
  2. Step 2: Convert to fraction form
    6,630.76/9,148.26 = 3,834.28/x
  3. Step 3: Cross multiply
    6,630.76x = 9,148.26 × 3,834.28
  4. Step 4: Simplify right side
    6,630.76x = 35,076,990.35
  5. Step 5: Solve for x
    x = 35,076,990.35/6,630.76
  6. Step 6: Final answer
    x = 5,290.04

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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.