Home / 3,161.90-4,745.01-1,214.12

Finding the Fourth Proportional to 3,161.90, 4,745.01 and 1,214.12

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Solution

The fourth proportional to 3,161.90, 4,745.01 and 1,214.12 is: 1,822.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.90 : 4,745.01 = 1,214.12 : x
  2. Step 2: Convert to fraction form
    3,161.90/4,745.01 = 1,214.12/x
  3. Step 3: Cross multiply
    3,161.90x = 4,745.01 × 1,214.12
  4. Step 4: Simplify right side
    3,161.90x = 5,761,027.96
  5. Step 5: Solve for x
    x = 5,761,027.96/3,161.90
  6. Step 6: Final answer
    x = 1,822.01

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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.