Home / 5,106.05-7,659.60-1,408.28

Finding the Fourth Proportional to 5,106.05, 7,659.60 and 1,408.28

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Solution

The fourth proportional to 5,106.05, 7,659.60 and 1,408.28 is: 2,112.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.05 : 7,659.60 = 1,408.28 : x
  2. Step 2: Convert to fraction form
    5,106.05/7,659.60 = 1,408.28/x
  3. Step 3: Cross multiply
    5,106.05x = 7,659.60 × 1,408.28
  4. Step 4: Simplify right side
    5,106.05x = 10,786,861.49
  5. Step 5: Solve for x
    x = 10,786,861.49/5,106.05
  6. Step 6: Final answer
    x = 2,112.56

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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.