Home / 3,209.50-4,429.11-1,812.34

Finding the Fourth Proportional to 3,209.50, 4,429.11 and 1,812.34

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Solution

The fourth proportional to 3,209.50, 4,429.11 and 1,812.34 is: 2,501.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.50 : 4,429.11 = 1,812.34 : x
  2. Step 2: Convert to fraction form
    3,209.50/4,429.11 = 1,812.34/x
  3. Step 3: Cross multiply
    3,209.50x = 4,429.11 × 1,812.34
  4. Step 4: Simplify right side
    3,209.50x = 8,027,053.22
  5. Step 5: Solve for x
    x = 8,027,053.22/3,209.50
  6. Step 6: Final answer
    x = 2,501.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.