Home / 3,119.70-4,674.45-1,729.62

Finding the Fourth Proportional to 3,119.70, 4,674.45 and 1,729.62

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Solution

The fourth proportional to 3,119.70, 4,674.45 and 1,729.62 is: 2,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.70 : 4,674.45 = 1,729.62 : x
  2. Step 2: Convert to fraction form
    3,119.70/4,674.45 = 1,729.62/x
  3. Step 3: Cross multiply
    3,119.70x = 4,674.45 × 1,729.62
  4. Step 4: Simplify right side
    3,119.70x = 8,085,022.21
  5. Step 5: Solve for x
    x = 8,085,022.21/3,119.70
  6. Step 6: Final answer
    x = 2,591.60

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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.