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Finding the Fourth Proportional to 6,520.60, 9,780.98 and 1,840.73

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Solution

The fourth proportional to 6,520.60, 9,780.98 and 1,840.73 is: 2,761.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.60 : 9,780.98 = 1,840.73 : x
  2. Step 2: Convert to fraction form
    6,520.60/9,780.98 = 1,840.73/x
  3. Step 3: Cross multiply
    6,520.60x = 9,780.98 × 1,840.73
  4. Step 4: Simplify right side
    6,520.60x = 18,004,090.38
  5. Step 5: Solve for x
    x = 18,004,090.38/6,520.60
  6. Step 6: Final answer
    x = 2,761.11

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1.5x scale

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.