Home / 1,992.44-2,749.88-1,153.15

Finding the Fourth Proportional to 1,992.44, 2,749.88 and 1,153.15

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Solution

The fourth proportional to 1,992.44, 2,749.88 and 1,153.15 is: 1,591.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.44 : 2,749.88 = 1,153.15 : x
  2. Step 2: Convert to fraction form
    1,992.44/2,749.88 = 1,153.15/x
  3. Step 3: Cross multiply
    1,992.44x = 2,749.88 × 1,153.15
  4. Step 4: Simplify right side
    1,992.44x = 3,171,024.12
  5. Step 5: Solve for x
    x = 3,171,024.12/1,992.44
  6. Step 6: Final answer
    x = 1,591.53

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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.