Home / 3,217.87-4,825.78-1,657.67

Finding the Fourth Proportional to 3,217.87, 4,825.78 and 1,657.67

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Solution

The fourth proportional to 3,217.87, 4,825.78 and 1,657.67 is: 2,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.87 : 4,825.78 = 1,657.67 : x
  2. Step 2: Convert to fraction form
    3,217.87/4,825.78 = 1,657.67/x
  3. Step 3: Cross multiply
    3,217.87x = 4,825.78 × 1,657.67
  4. Step 4: Simplify right side
    3,217.87x = 7,999,546.77
  5. Step 5: Solve for x
    x = 7,999,546.77/3,217.87
  6. Step 6: Final answer
    x = 2,485.97

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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.