Home / 3,210.10-4,811.10-2,861.80

Finding the Fourth Proportional to 3,210.10, 4,811.10 and 2,861.80

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Solution

The fourth proportional to 3,210.10, 4,811.10 and 2,861.80 is: 4,289.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.10 : 4,811.10 = 2,861.80 : x
  2. Step 2: Convert to fraction form
    3,210.10/4,811.10 = 2,861.80/x
  3. Step 3: Cross multiply
    3,210.10x = 4,811.10 × 2,861.80
  4. Step 4: Simplify right side
    3,210.10x = 13,768,405.98
  5. Step 5: Solve for x
    x = 13,768,405.98/3,210.10
  6. Step 6: Final answer
    x = 4,289.09

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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.