Home / 5,408.32-8,112.96-1,512.76

Finding the Fourth Proportional to 5,408.32, 8,112.96 and 1,512.76

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Solution

The fourth proportional to 5,408.32, 8,112.96 and 1,512.76 is: 2,269.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.32 : 8,112.96 = 1,512.76 : x
  2. Step 2: Convert to fraction form
    5,408.32/8,112.96 = 1,512.76/x
  3. Step 3: Cross multiply
    5,408.32x = 8,112.96 × 1,512.76
  4. Step 4: Simplify right side
    5,408.32x = 12,272,961.37
  5. Step 5: Solve for x
    x = 12,272,961.37/5,408.32
  6. Step 6: Final answer
    x = 2,269.27

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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.