Home / 3,209.26-4,428.57-1,812.10

Finding the Fourth Proportional to 3,209.26, 4,428.57 and 1,812.10

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Solution

The fourth proportional to 3,209.26, 4,428.57 and 1,812.10 is: 2,500.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.26 : 4,428.57 = 1,812.10 : x
  2. Step 2: Convert to fraction form
    3,209.26/4,428.57 = 1,812.10/x
  3. Step 3: Cross multiply
    3,209.26x = 4,428.57 × 1,812.10
  4. Step 4: Simplify right side
    3,209.26x = 8,025,011.70
  5. Step 5: Solve for x
    x = 8,025,011.70/3,209.26
  6. Step 6: Final answer
    x = 2,500.58

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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.