Home / 3,208.53-4,813.65-2,115.03

Finding the Fourth Proportional to 3,208.53, 4,813.65 and 2,115.03

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Solution

The fourth proportional to 3,208.53, 4,813.65 and 2,115.03 is: 3,173.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.53 : 4,813.65 = 2,115.03 : x
  2. Step 2: Convert to fraction form
    3,208.53/4,813.65 = 2,115.03/x
  3. Step 3: Cross multiply
    3,208.53x = 4,813.65 × 2,115.03
  4. Step 4: Simplify right side
    3,208.53x = 10,181,014.16
  5. Step 5: Solve for x
    x = 10,181,014.16/3,208.53
  6. Step 6: Final answer
    x = 3,173.11

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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.