Home / 3,403.10-5,129.78-3,122.30

Finding the Fourth Proportional to 3,403.10, 5,129.78 and 3,122.30

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Solution

The fourth proportional to 3,403.10, 5,129.78 and 3,122.30 is: 4,706.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.10 : 5,129.78 = 3,122.30 : x
  2. Step 2: Convert to fraction form
    3,403.10/5,129.78 = 3,122.30/x
  3. Step 3: Cross multiply
    3,403.10x = 5,129.78 × 3,122.30
  4. Step 4: Simplify right side
    3,403.10x = 16,016,712.09
  5. Step 5: Solve for x
    x = 16,016,712.09/3,403.10
  6. Step 6: Final answer
    x = 4,706.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.