Home / 3,978,317.01-5,491,044.37-2,430,881.75

Finding the Fourth Proportional to 3,978,317.01, 5,491,044.37 and 2,430,881.75

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Solution

The fourth proportional to 3,978,317.01, 5,491,044.37 and 2,430,881.75 is: 3,355,207.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,317.01 : 5,491,044.37 = 2,430,881.75 : x
  2. Step 2: Convert to fraction form
    3,978,317.01/5,491,044.37 = 2,430,881.75/x
  3. Step 3: Cross multiply
    3,978,317.01x = 5,491,044.37 × 2,430,881.75
  4. Step 4: Simplify right side
    3,978,317.01x = 13,348,079,541,074.39
  5. Step 5: Solve for x
    x = 13,348,079,541,074.39/3,978,317.01
  6. Step 6: Final answer
    x = 3,355,207.62

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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.