Home / 2,101,986-2,901,213.18-1,376,412.30

Finding the Fourth Proportional to 2,101,986, 2,901,213.18 and 1,376,412.30

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Solution

The fourth proportional to 2,101,986, 2,901,213.18 and 1,376,412.30 is: 1,899,758.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101,986 : 2,901,213.18 = 1,376,412.30 : x
  2. Step 2: Convert to fraction form
    2,101,986/2,901,213.18 = 1,376,412.30/x
  3. Step 3: Cross multiply
    2,101,986x = 2,901,213.18 × 1,376,412.30
  4. Step 4: Simplify right side
    2,101,986x = 3,993,265,505,874.11
  5. Step 5: Solve for x
    x = 3,993,265,505,874.11/2,101,986
  6. Step 6: Final answer
    x = 1,899,758.37

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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.