Home / 2,144.19-3,216.69-845.67

Finding the Fourth Proportional to 2,144.19, 3,216.69 and 845.67

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Solution

The fourth proportional to 2,144.19, 3,216.69 and 845.67 is: 1,268.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.19 : 3,216.69 = 845.67 : x
  2. Step 2: Convert to fraction form
    2,144.19/3,216.69 = 845.67/x
  3. Step 3: Cross multiply
    2,144.19x = 3,216.69 × 845.67
  4. Step 4: Simplify right side
    2,144.19x = 2,720,258.23
  5. Step 5: Solve for x
    x = 2,720,258.23/2,144.19
  6. Step 6: Final answer
    x = 1,268.66

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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.