Home / 4,138.10-6,207.15-4,109.30

Finding the Fourth Proportional to 4,138.10, 6,207.15 and 4,109.30

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Solution

The fourth proportional to 4,138.10, 6,207.15 and 4,109.30 is: 6,163.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.10 : 6,207.15 = 4,109.30 : x
  2. Step 2: Convert to fraction form
    4,138.10/6,207.15 = 4,109.30/x
  3. Step 3: Cross multiply
    4,138.10x = 6,207.15 × 4,109.30
  4. Step 4: Simplify right side
    4,138.10x = 25,507,041.50
  5. Step 5: Solve for x
    x = 25,507,041.50/4,138.10
  6. Step 6: Final answer
    x = 6,163.95

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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.