Home / 3,423.23-5,138.39-2,107.93

Finding the Fourth Proportional to 3,423.23, 5,138.39 and 2,107.93

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Solution

The fourth proportional to 3,423.23, 5,138.39 and 2,107.93 is: 3,164.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.23 : 5,138.39 = 2,107.93 : x
  2. Step 2: Convert to fraction form
    3,423.23/5,138.39 = 2,107.93/x
  3. Step 3: Cross multiply
    3,423.23x = 5,138.39 × 2,107.93
  4. Step 4: Simplify right side
    3,423.23x = 10,831,366.43
  5. Step 5: Solve for x
    x = 10,831,366.43/3,423.23
  6. Step 6: Final answer
    x = 3,164.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.