Home / 1,992.60-2,749.34-1,206.62

Finding the Fourth Proportional to 1,992.60, 2,749.34 and 1,206.62

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Solution

The fourth proportional to 1,992.60, 2,749.34 and 1,206.62 is: 1,664.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.60 : 2,749.34 = 1,206.62 : x
  2. Step 2: Convert to fraction form
    1,992.60/2,749.34 = 1,206.62/x
  3. Step 3: Cross multiply
    1,992.60x = 2,749.34 × 1,206.62
  4. Step 4: Simplify right side
    1,992.60x = 3,317,408.63
  5. Step 5: Solve for x
    x = 3,317,408.63/1,992.60
  6. Step 6: Final answer
    x = 1,664.86

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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.