Home / 4,121.28-5,682.29-3,391.47

Finding the Fourth Proportional to 4,121.28, 5,682.29 and 3,391.47

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Solution

The fourth proportional to 4,121.28, 5,682.29 and 3,391.47 is: 4,676.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.28 : 5,682.29 = 3,391.47 : x
  2. Step 2: Convert to fraction form
    4,121.28/5,682.29 = 3,391.47/x
  3. Step 3: Cross multiply
    4,121.28x = 5,682.29 × 3,391.47
  4. Step 4: Simplify right side
    4,121.28x = 19,271,299.11
  5. Step 5: Solve for x
    x = 19,271,299.11/4,121.28
  6. Step 6: Final answer
    x = 4,676.05

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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.