Home / 3,178.22-4,759.21-1,880.62

Finding the Fourth Proportional to 3,178.22, 4,759.21 and 1,880.62

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Solution

The fourth proportional to 3,178.22, 4,759.21 and 1,880.62 is: 2,816.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.22 : 4,759.21 = 1,880.62 : x
  2. Step 2: Convert to fraction form
    3,178.22/4,759.21 = 1,880.62/x
  3. Step 3: Cross multiply
    3,178.22x = 4,759.21 × 1,880.62
  4. Step 4: Simplify right side
    3,178.22x = 8,950,265.51
  5. Step 5: Solve for x
    x = 8,950,265.51/3,178.22
  6. Step 6: Final answer
    x = 2,816.13

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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.