Home / 1,992.22-2,749.26-1,108.10

Finding the Fourth Proportional to 1,992.22, 2,749.26 and 1,108.10

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Solution

The fourth proportional to 1,992.22, 2,749.26 and 1,108.10 is: 1,529.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.22 : 2,749.26 = 1,108.10 : x
  2. Step 2: Convert to fraction form
    1,992.22/2,749.26 = 1,108.10/x
  3. Step 3: Cross multiply
    1,992.22x = 2,749.26 × 1,108.10
  4. Step 4: Simplify right side
    1,992.22x = 3,046,455.01
  5. Step 5: Solve for x
    x = 3,046,455.01/1,992.22
  6. Step 6: Final answer
    x = 1,529.18

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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.