Home / 2,815,378.56-3,885,174.72-1,591,665.60

Finding the Fourth Proportional to 2,815,378.56, 3,885,174.72 and 1,591,665.60

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Solution

The fourth proportional to 2,815,378.56, 3,885,174.72 and 1,591,665.60 is: 2,196,471.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815,378.56 : 3,885,174.72 = 1,591,665.60 : x
  2. Step 2: Convert to fraction form
    2,815,378.56/3,885,174.72 = 1,591,665.60/x
  3. Step 3: Cross multiply
    2,815,378.56x = 3,885,174.72 × 1,591,665.60
  4. Step 4: Simplify right side
    2,815,378.56x = 6,183,898,951,813.63
  5. Step 5: Solve for x
    x = 6,183,898,951,813.63/2,815,378.56
  6. Step 6: Final answer
    x = 2,196,471.57

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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.