Home / 3,209.90-4,812.78-2,110.94

Finding the Fourth Proportional to 3,209.90, 4,812.78 and 2,110.94

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Solution

The fourth proportional to 3,209.90, 4,812.78 and 2,110.94 is: 3,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.90 : 4,812.78 = 2,110.94 : x
  2. Step 2: Convert to fraction form
    3,209.90/4,812.78 = 2,110.94/x
  3. Step 3: Cross multiply
    3,209.90x = 4,812.78 × 2,110.94
  4. Step 4: Simplify right side
    3,209.90x = 10,159,489.81
  5. Step 5: Solve for x
    x = 10,159,489.81/3,209.90
  6. Step 6: Final answer
    x = 3,165.05

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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.