Home / 3,900,515.31-5,382,745.25-2,181,795.75

Finding the Fourth Proportional to 3,900,515.31, 5,382,745.25 and 2,181,795.75

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Solution

The fourth proportional to 3,900,515.31, 5,382,745.25 and 2,181,795.75 is: 3,010,897.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900,515.31 : 5,382,745.25 = 2,181,795.75 : x
  2. Step 2: Convert to fraction form
    3,900,515.31/5,382,745.25 = 2,181,795.75/x
  3. Step 3: Cross multiply
    3,900,515.31x = 5,382,745.25 × 2,181,795.75
  4. Step 4: Simplify right side
    3,900,515.31x = 11,744,050,698,873.71
  5. Step 5: Solve for x
    x = 11,744,050,698,873.71/3,900,515.31
  6. Step 6: Final answer
    x = 3,010,897.22

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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.