Home / 7,944.29-11,917.14-2,100.90

Finding the Fourth Proportional to 7,944.29, 11,917.14 and 2,100.90

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Solution

The fourth proportional to 7,944.29, 11,917.14 and 2,100.90 is: 3,151.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944.29 : 11,917.14 = 2,100.90 : x
  2. Step 2: Convert to fraction form
    7,944.29/11,917.14 = 2,100.90/x
  3. Step 3: Cross multiply
    7,944.29x = 11,917.14 × 2,100.90
  4. Step 4: Simplify right side
    7,944.29x = 25,036,719.43
  5. Step 5: Solve for x
    x = 25,036,719.43/7,944.29
  6. Step 6: Final answer
    x = 3,151.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.