Home / 3,168.20-4,757.70-2,077.40

Finding the Fourth Proportional to 3,168.20, 4,757.70 and 2,077.40

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Solution

The fourth proportional to 3,168.20, 4,757.70 and 2,077.40 is: 3,119.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.20 : 4,757.70 = 2,077.40 : x
  2. Step 2: Convert to fraction form
    3,168.20/4,757.70 = 2,077.40/x
  3. Step 3: Cross multiply
    3,168.20x = 4,757.70 × 2,077.40
  4. Step 4: Simplify right side
    3,168.20x = 9,883,645.98
  5. Step 5: Solve for x
    x = 9,883,645.98/3,168.20
  6. Step 6: Final answer
    x = 3,119.64

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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.