Home / 2,963.09-4,090.82-1,970.43

Finding the Fourth Proportional to 2,963.09, 4,090.82 and 1,970.43

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Solution

The fourth proportional to 2,963.09, 4,090.82 and 1,970.43 is: 2,720.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.09 : 4,090.82 = 1,970.43 : x
  2. Step 2: Convert to fraction form
    2,963.09/4,090.82 = 1,970.43/x
  3. Step 3: Cross multiply
    2,963.09x = 4,090.82 × 1,970.43
  4. Step 4: Simplify right side
    2,963.09x = 8,060,664.60
  5. Step 5: Solve for x
    x = 8,060,664.60/2,963.09
  6. Step 6: Final answer
    x = 2,720.36

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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.