Home / 8,583.60-12,876.64-2,739.60

Finding the Fourth Proportional to 8,583.60, 12,876.64 and 2,739.60

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Solution

The fourth proportional to 8,583.60, 12,876.64 and 2,739.60 is: 4,109.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,583.60 : 12,876.64 = 2,739.60 : x
  2. Step 2: Convert to fraction form
    8,583.60/12,876.64 = 2,739.60/x
  3. Step 3: Cross multiply
    8,583.60x = 12,876.64 × 2,739.60
  4. Step 4: Simplify right side
    8,583.60x = 35,276,842.94
  5. Step 5: Solve for x
    x = 35,276,842.94/8,583.60
  6. Step 6: Final answer
    x = 4,109.80

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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.