Home / 3,049.31-4,207.74-1,722.99

Finding the Fourth Proportional to 3,049.31, 4,207.74 and 1,722.99

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Solution

The fourth proportional to 3,049.31, 4,207.74 and 1,722.99 is: 2,377.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.31 : 4,207.74 = 1,722.99 : x
  2. Step 2: Convert to fraction form
    3,049.31/4,207.74 = 1,722.99/x
  3. Step 3: Cross multiply
    3,049.31x = 4,207.74 × 1,722.99
  4. Step 4: Simplify right side
    3,049.31x = 7,249,893.94
  5. Step 5: Solve for x
    x = 7,249,893.94/3,049.31
  6. Step 6: Final answer
    x = 2,377.56

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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.