Home / 7,945.19-11,917.86-2,398.58

Finding the Fourth Proportional to 7,945.19, 11,917.86 and 2,398.58

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Solution

The fourth proportional to 7,945.19, 11,917.86 and 2,398.58 is: 3,597.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.19 : 11,917.86 = 2,398.58 : x
  2. Step 2: Convert to fraction form
    7,945.19/11,917.86 = 2,398.58/x
  3. Step 3: Cross multiply
    7,945.19x = 11,917.86 × 2,398.58
  4. Step 4: Simplify right side
    7,945.19x = 28,585,881.05
  5. Step 5: Solve for x
    x = 28,585,881.05/7,945.19
  6. Step 6: Final answer
    x = 3,597.89

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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.