Home / 3,161.76-4,734.36-2,505.12

Finding the Fourth Proportional to 3,161.76, 4,734.36 and 2,505.12

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Solution

The fourth proportional to 3,161.76, 4,734.36 and 2,505.12 is: 3,751.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.76 : 4,734.36 = 2,505.12 : x
  2. Step 2: Convert to fraction form
    3,161.76/4,734.36 = 2,505.12/x
  3. Step 3: Cross multiply
    3,161.76x = 4,734.36 × 2,505.12
  4. Step 4: Simplify right side
    3,161.76x = 11,860,139.92
  5. Step 5: Solve for x
    x = 11,860,139.92/3,161.76
  6. Step 6: Final answer
    x = 3,751.12

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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.