Home / 2,114.62-3,165.45-1,138.30

Finding the Fourth Proportional to 2,114.62, 3,165.45 and 1,138.30

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Solution

The fourth proportional to 2,114.62, 3,165.45 and 1,138.30 is: 1,703.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.62 : 3,165.45 = 1,138.30 : x
  2. Step 2: Convert to fraction form
    2,114.62/3,165.45 = 1,138.30/x
  3. Step 3: Cross multiply
    2,114.62x = 3,165.45 × 1,138.30
  4. Step 4: Simplify right side
    2,114.62x = 3,603,231.74
  5. Step 5: Solve for x
    x = 3,603,231.74/2,114.62
  6. Step 6: Final answer
    x = 1,703.96

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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.