Home / 3,212.35-4,817.27-1,898.80

Finding the Fourth Proportional to 3,212.35, 4,817.27 and 1,898.80

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Solution

The fourth proportional to 3,212.35, 4,817.27 and 1,898.80 is: 2,847.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.35 : 4,817.27 = 1,898.80 : x
  2. Step 2: Convert to fraction form
    3,212.35/4,817.27 = 1,898.80/x
  3. Step 3: Cross multiply
    3,212.35x = 4,817.27 × 1,898.80
  4. Step 4: Simplify right side
    3,212.35x = 9,147,024.98
  5. Step 5: Solve for x
    x = 9,147,024.98/3,212.35
  6. Step 6: Final answer
    x = 2,847.46

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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.