Home / 5,609.60-8,414.64-1,911.68

Finding the Fourth Proportional to 5,609.60, 8,414.64 and 1,911.68

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Solution

The fourth proportional to 5,609.60, 8,414.64 and 1,911.68 is: 2,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,609.60 : 8,414.64 = 1,911.68 : x
  2. Step 2: Convert to fraction form
    5,609.60/8,414.64 = 1,911.68/x
  3. Step 3: Cross multiply
    5,609.60x = 8,414.64 × 1,911.68
  4. Step 4: Simplify right side
    5,609.60x = 16,086,099.00
  5. Step 5: Solve for x
    x = 16,086,099.00/5,609.60
  6. Step 6: Final answer
    x = 2,867.60

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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.