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Finding the Fourth Proportional to 6,630.54, 9,149.13 and 3,835.50

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Solution

The fourth proportional to 6,630.54, 9,149.13 and 3,835.50 is: 5,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.54 : 9,149.13 = 3,835.50 : x
  2. Step 2: Convert to fraction form
    6,630.54/9,149.13 = 3,835.50/x
  3. Step 3: Cross multiply
    6,630.54x = 9,149.13 × 3,835.50
  4. Step 4: Simplify right side
    6,630.54x = 35,091,488.12
  5. Step 5: Solve for x
    x = 35,091,488.12/6,630.54
  6. Step 6: Final answer
    x = 5,292.40

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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.