Home / 3,149.18-4,345.41-1,889.97

Finding the Fourth Proportional to 3,149.18, 4,345.41 and 1,889.97

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Solution

The fourth proportional to 3,149.18, 4,345.41 and 1,889.97 is: 2,607.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.18 : 4,345.41 = 1,889.97 : x
  2. Step 2: Convert to fraction form
    3,149.18/4,345.41 = 1,889.97/x
  3. Step 3: Cross multiply
    3,149.18x = 4,345.41 × 1,889.97
  4. Step 4: Simplify right side
    3,149.18x = 8,212,674.70
  5. Step 5: Solve for x
    x = 8,212,674.70/3,149.18
  6. Step 6: Final answer
    x = 2,607.88

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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.