Home / 2,992.64-4,133.55-2,112.38

Finding the Fourth Proportional to 2,992.64, 4,133.55 and 2,112.38

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Solution

The fourth proportional to 2,992.64, 4,133.55 and 2,112.38 is: 2,917.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.64 : 4,133.55 = 2,112.38 : x
  2. Step 2: Convert to fraction form
    2,992.64/4,133.55 = 2,112.38/x
  3. Step 3: Cross multiply
    2,992.64x = 4,133.55 × 2,112.38
  4. Step 4: Simplify right side
    2,992.64x = 8,731,597.12
  5. Step 5: Solve for x
    x = 8,731,597.12/2,992.64
  6. Step 6: Final answer
    x = 2,917.69

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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.