Home / 3,968,040.96-5,475,664-2,157,189.12

Finding the Fourth Proportional to 3,968,040.96, 5,475,664 and 2,157,189.12

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Solution

The fourth proportional to 3,968,040.96, 5,475,664 and 2,157,189.12 is: 2,976,794.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968,040.96 : 5,475,664 = 2,157,189.12 : x
  2. Step 2: Convert to fraction form
    3,968,040.96/5,475,664 = 2,157,189.12/x
  3. Step 3: Cross multiply
    3,968,040.96x = 5,475,664 × 2,157,189.12
  4. Step 4: Simplify right side
    3,968,040.96x = 11,812,042,805,575.68
  5. Step 5: Solve for x
    x = 11,812,042,805,575.68/3,968,040.96
  6. Step 6: Final answer
    x = 2,976,794.58

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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.