Home / 5,608.40-8,412.60-1,911.56

Finding the Fourth Proportional to 5,608.40, 8,412.60 and 1,911.56

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Solution

The fourth proportional to 5,608.40, 8,412.60 and 1,911.56 is: 2,867.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.40 : 8,412.60 = 1,911.56 : x
  2. Step 2: Convert to fraction form
    5,608.40/8,412.60 = 1,911.56/x
  3. Step 3: Cross multiply
    5,608.40x = 8,412.60 × 1,911.56
  4. Step 4: Simplify right side
    5,608.40x = 16,081,189.66
  5. Step 5: Solve for x
    x = 16,081,189.66/5,608.40
  6. Step 6: Final answer
    x = 2,867.34

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Similar ratio
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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.