Home / 3,961,944.90-5,457,690.09-3,379,269.78

Finding the Fourth Proportional to 3,961,944.90, 5,457,690.09 and 3,379,269.78

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Solution

The fourth proportional to 3,961,944.90, 5,457,690.09 and 3,379,269.78 is: 4,655,038.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961,944.90 : 5,457,690.09 = 3,379,269.78 : x
  2. Step 2: Convert to fraction form
    3,961,944.90/5,457,690.09 = 3,379,269.78/x
  3. Step 3: Cross multiply
    3,961,944.90x = 5,457,690.09 × 3,379,269.78
  4. Step 4: Simplify right side
    3,961,944.90x = 18,443,007,189,742.48
  5. Step 5: Solve for x
    x = 18,443,007,189,742.48/3,961,944.90
  6. Step 6: Final answer
    x = 4,655,038.79

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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.