Home / 3,391.63-4,679.55-2,196.99

Finding the Fourth Proportional to 3,391.63, 4,679.55 and 2,196.99

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Solution

The fourth proportional to 3,391.63, 4,679.55 and 2,196.99 is: 3,031.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.63 : 4,679.55 = 2,196.99 : x
  2. Step 2: Convert to fraction form
    3,391.63/4,679.55 = 2,196.99/x
  3. Step 3: Cross multiply
    3,391.63x = 4,679.55 × 2,196.99
  4. Step 4: Simplify right side
    3,391.63x = 10,280,912.54
  5. Step 5: Solve for x
    x = 10,280,912.54/3,391.63
  6. Step 6: Final answer
    x = 3,031.26

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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.