Home / 4,107.20-6,160.80-2,722.40

Finding the Fourth Proportional to 4,107.20, 6,160.80 and 2,722.40

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Solution

The fourth proportional to 4,107.20, 6,160.80 and 2,722.40 is: 4,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,107.20 : 6,160.80 = 2,722.40 : x
  2. Step 2: Convert to fraction form
    4,107.20/6,160.80 = 2,722.40/x
  3. Step 3: Cross multiply
    4,107.20x = 6,160.80 × 2,722.40
  4. Step 4: Simplify right side
    4,107.20x = 16,772,161.92
  5. Step 5: Solve for x
    x = 16,772,161.92/4,107.20
  6. Step 6: Final answer
    x = 4,083.60

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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.