Home / 2,153,963.62-2,972,976.31-1,338,782.94

Finding the Fourth Proportional to 2,153,963.62, 2,972,976.31 and 1,338,782.94

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Solution

The fourth proportional to 2,153,963.62, 2,972,976.31 and 1,338,782.94 is: 1,847,835.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,963.62 : 2,972,976.31 = 1,338,782.94 : x
  2. Step 2: Convert to fraction form
    2,153,963.62/2,972,976.31 = 1,338,782.94/x
  3. Step 3: Cross multiply
    2,153,963.62x = 2,972,976.31 × 1,338,782.94
  4. Step 4: Simplify right side
    2,153,963.62x = 3,980,169,964,852.15
  5. Step 5: Solve for x
    x = 3,980,169,964,852.15/2,153,963.62
  6. Step 6: Final answer
    x = 1,847,835.28

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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.