Home / 2,855,021.22-3,939,565.68-1,631,405.52

Finding the Fourth Proportional to 2,855,021.22, 3,939,565.68 and 1,631,405.52

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Solution

The fourth proportional to 2,855,021.22, 3,939,565.68 and 1,631,405.52 is: 2,251,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855,021.22 : 3,939,565.68 = 1,631,405.52 : x
  2. Step 2: Convert to fraction form
    2,855,021.22/3,939,565.68 = 1,631,405.52/x
  3. Step 3: Cross multiply
    2,855,021.22x = 3,939,565.68 × 1,631,405.52
  4. Step 4: Simplify right side
    2,855,021.22x = 6,427,029,196,754.55
  5. Step 5: Solve for x
    x = 6,427,029,196,754.55/2,855,021.22
  6. Step 6: Final answer
    x = 2,251,131.85

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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.