Home / 3,211.30-4,813.35-1,650.70

Finding the Fourth Proportional to 3,211.30, 4,813.35 and 1,650.70

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Solution

The fourth proportional to 3,211.30, 4,813.35 and 1,650.70 is: 2,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.30 : 4,813.35 = 1,650.70 : x
  2. Step 2: Convert to fraction form
    3,211.30/4,813.35 = 1,650.70/x
  3. Step 3: Cross multiply
    3,211.30x = 4,813.35 × 1,650.70
  4. Step 4: Simplify right side
    3,211.30x = 7,945,396.85
  5. Step 5: Solve for x
    x = 7,945,396.85/3,211.30
  6. Step 6: Final answer
    x = 2,474.20

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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.