Home / 3,149.43-4,344.23-1,889.63

Finding the Fourth Proportional to 3,149.43, 4,344.23 and 1,889.63

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Solution

The fourth proportional to 3,149.43, 4,344.23 and 1,889.63 is: 2,606.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.43 : 4,344.23 = 1,889.63 : x
  2. Step 2: Convert to fraction form
    3,149.43/4,344.23 = 1,889.63/x
  3. Step 3: Cross multiply
    3,149.43x = 4,344.23 × 1,889.63
  4. Step 4: Simplify right side
    3,149.43x = 8,208,986.63
  5. Step 5: Solve for x
    x = 8,208,986.63/3,149.43
  6. Step 6: Final answer
    x = 2,606.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.