Home / 3,210.81-4,813.89-2,168.25

Finding the Fourth Proportional to 3,210.81, 4,813.89 and 2,168.25

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Solution

The fourth proportional to 3,210.81, 4,813.89 and 2,168.25 is: 3,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.81 : 4,813.89 = 2,168.25 : x
  2. Step 2: Convert to fraction form
    3,210.81/4,813.89 = 2,168.25/x
  3. Step 3: Cross multiply
    3,210.81x = 4,813.89 × 2,168.25
  4. Step 4: Simplify right side
    3,210.81x = 10,437,716.99
  5. Step 5: Solve for x
    x = 10,437,716.99/3,210.81
  6. Step 6: Final answer
    x = 3,250.80

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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.