Home / 3,101.21-4,650.57-1,152.75

Finding the Fourth Proportional to 3,101.21, 4,650.57 and 1,152.75

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Solution

The fourth proportional to 3,101.21, 4,650.57 and 1,152.75 is: 1,728.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.21 : 4,650.57 = 1,152.75 : x
  2. Step 2: Convert to fraction form
    3,101.21/4,650.57 = 1,152.75/x
  3. Step 3: Cross multiply
    3,101.21x = 4,650.57 × 1,152.75
  4. Step 4: Simplify right side
    3,101.21x = 5,360,944.57
  5. Step 5: Solve for x
    x = 5,360,944.57/3,101.21
  6. Step 6: Final answer
    x = 1,728.67

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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.