Home / 3,997,920.88-5,517,174.36-2,187,046

Finding the Fourth Proportional to 3,997,920.88, 5,517,174.36 and 2,187,046

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Solution

The fourth proportional to 3,997,920.88, 5,517,174.36 and 2,187,046 is: 3,018,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997,920.88 : 5,517,174.36 = 2,187,046 : x
  2. Step 2: Convert to fraction form
    3,997,920.88/5,517,174.36 = 2,187,046/x
  3. Step 3: Cross multiply
    3,997,920.88x = 5,517,174.36 × 2,187,046
  4. Step 4: Simplify right side
    3,997,920.88x = 12,066,314,115,340.56
  5. Step 5: Solve for x
    x = 12,066,314,115,340.56/3,997,920.88
  6. Step 6: Final answer
    x = 3,018,147.30

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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.