Home / 1,979.37-2,726.46-1,664.28

Finding the Fourth Proportional to 1,979.37, 2,726.46 and 1,664.28

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Solution

The fourth proportional to 1,979.37, 2,726.46 and 1,664.28 is: 2,292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.37 : 2,726.46 = 1,664.28 : x
  2. Step 2: Convert to fraction form
    1,979.37/2,726.46 = 1,664.28/x
  3. Step 3: Cross multiply
    1,979.37x = 2,726.46 × 1,664.28
  4. Step 4: Simplify right side
    1,979.37x = 4,537,592.85
  5. Step 5: Solve for x
    x = 4,537,592.85/1,979.37
  6. Step 6: Final answer
    x = 2,292.44

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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.