Home / 2,119.44-2,920.68-1,622.64

Finding the Fourth Proportional to 2,119.44, 2,920.68 and 1,622.64

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Solution

The fourth proportional to 2,119.44, 2,920.68 and 1,622.64 is: 2,236.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.44 : 2,920.68 = 1,622.64 : x
  2. Step 2: Convert to fraction form
    2,119.44/2,920.68 = 1,622.64/x
  3. Step 3: Cross multiply
    2,119.44x = 2,920.68 × 1,622.64
  4. Step 4: Simplify right side
    2,119.44x = 4,739,212.20
  5. Step 5: Solve for x
    x = 4,739,212.20/2,119.44
  6. Step 6: Final answer
    x = 2,236.07

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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.