Home / 2,160,735.64-2,981,559.38-1,289,408.87

Finding the Fourth Proportional to 2,160,735.64, 2,981,559.38 and 1,289,408.87

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Solution

The fourth proportional to 2,160,735.64, 2,981,559.38 and 1,289,408.87 is: 1,779,231.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160,735.64 : 2,981,559.38 = 1,289,408.87 : x
  2. Step 2: Convert to fraction form
    2,160,735.64/2,981,559.38 = 1,289,408.87/x
  3. Step 3: Cross multiply
    2,160,735.64x = 2,981,559.38 × 1,289,408.87
  4. Step 4: Simplify right side
    2,160,735.64x = 3,844,449,112,010.56
  5. Step 5: Solve for x
    x = 3,844,449,112,010.56/2,160,735.64
  6. Step 6: Final answer
    x = 1,779,231.59

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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.