Home / 6,520.60-9,781.80-2,359.60

Finding the Fourth Proportional to 6,520.60, 9,781.80 and 2,359.60

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Solution

The fourth proportional to 6,520.60, 9,781.80 and 2,359.60 is: 3,539.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.60 : 9,781.80 = 2,359.60 : x
  2. Step 2: Convert to fraction form
    6,520.60/9,781.80 = 2,359.60/x
  3. Step 3: Cross multiply
    6,520.60x = 9,781.80 × 2,359.60
  4. Step 4: Simplify right side
    6,520.60x = 23,081,135.28
  5. Step 5: Solve for x
    x = 23,081,135.28/6,520.60
  6. Step 6: Final answer
    x = 3,539.73

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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.