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Finding the Fourth Proportional to 6,630.60, 9,148.50 and 4,276.20

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Solution

The fourth proportional to 6,630.60, 9,148.50 and 4,276.20 is: 5,900.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.60 : 9,148.50 = 4,276.20 : x
  2. Step 2: Convert to fraction form
    6,630.60/9,148.50 = 4,276.20/x
  3. Step 3: Cross multiply
    6,630.60x = 9,148.50 × 4,276.20
  4. Step 4: Simplify right side
    6,630.60x = 39,120,815.70
  5. Step 5: Solve for x
    x = 39,120,815.70/6,630.60
  6. Step 6: Final answer
    x = 5,900.04

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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.