Home / 3,901,381.70-5,383,784.63-2,158,945.94

Finding the Fourth Proportional to 3,901,381.70, 5,383,784.63 and 2,158,945.94

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Solution

The fourth proportional to 3,901,381.70, 5,383,784.63 and 2,158,945.94 is: 2,979,277.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901,381.70 : 5,383,784.63 = 2,158,945.94 : x
  2. Step 2: Convert to fraction form
    3,901,381.70/5,383,784.63 = 2,158,945.94/x
  3. Step 3: Cross multiply
    3,901,381.70x = 5,383,784.63 × 2,158,945.94
  4. Step 4: Simplify right side
    3,901,381.70x = 11,623,299,931,059.25
  5. Step 5: Solve for x
    x = 11,623,299,931,059.25/3,901,381.70
  6. Step 6: Final answer
    x = 2,979,277.81

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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.