Home / 3,511.19-4,839.67-2,489.48

Finding the Fourth Proportional to 3,511.19, 4,839.67 and 2,489.48

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Solution

The fourth proportional to 3,511.19, 4,839.67 and 2,489.48 is: 3,431.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.19 : 4,839.67 = 2,489.48 : x
  2. Step 2: Convert to fraction form
    3,511.19/4,839.67 = 2,489.48/x
  3. Step 3: Cross multiply
    3,511.19x = 4,839.67 × 2,489.48
  4. Step 4: Simplify right side
    3,511.19x = 12,048,231.12
  5. Step 5: Solve for x
    x = 12,048,231.12/3,511.19
  6. Step 6: Final answer
    x = 3,431.38

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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.