Home / 3,161.40-4,362.98-1,745.34

Finding the Fourth Proportional to 3,161.40, 4,362.98 and 1,745.34

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Solution

The fourth proportional to 3,161.40, 4,362.98 and 1,745.34 is: 2,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.40 : 4,362.98 = 1,745.34 : x
  2. Step 2: Convert to fraction form
    3,161.40/4,362.98 = 1,745.34/x
  3. Step 3: Cross multiply
    3,161.40x = 4,362.98 × 1,745.34
  4. Step 4: Simplify right side
    3,161.40x = 7,614,874.79
  5. Step 5: Solve for x
    x = 7,614,874.79/3,161.40
  6. Step 6: Final answer
    x = 2,408.70

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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.