Home / 2,153,971.54-2,972,987.26-1,338,790.88

Finding the Fourth Proportional to 2,153,971.54, 2,972,987.26 and 1,338,790.88

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Solution

The fourth proportional to 2,153,971.54, 2,972,987.26 and 1,338,790.88 is: 1,847,846.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,971.54 : 2,972,987.26 = 1,338,790.88 : x
  2. Step 2: Convert to fraction form
    2,153,971.54/2,972,987.26 = 1,338,790.88/x
  3. Step 3: Cross multiply
    2,153,971.54x = 2,972,987.26 × 1,338,790.88
  4. Step 4: Simplify right side
    2,153,971.54x = 3,980,208,215,179.25
  5. Step 5: Solve for x
    x = 3,980,208,215,179.25/2,153,971.54
  6. Step 6: Final answer
    x = 1,847,846.25

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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.