Home / 3,012.08-4,161.87-2,487.20

Finding the Fourth Proportional to 3,012.08, 4,161.87 and 2,487.20

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Solution

The fourth proportional to 3,012.08, 4,161.87 and 2,487.20 is: 3,436.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.08 : 4,161.87 = 2,487.20 : x
  2. Step 2: Convert to fraction form
    3,012.08/4,161.87 = 2,487.20/x
  3. Step 3: Cross multiply
    3,012.08x = 4,161.87 × 2,487.20
  4. Step 4: Simplify right side
    3,012.08x = 10,351,382.25
  5. Step 5: Solve for x
    x = 10,351,382.25/3,012.08
  6. Step 6: Final answer
    x = 3,436.63

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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.