Home / 2,939.09-4,051.42-2,098.31

Finding the Fourth Proportional to 2,939.09, 4,051.42 and 2,098.31

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Solution

The fourth proportional to 2,939.09, 4,051.42 and 2,098.31 is: 2,892.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.09 : 4,051.42 = 2,098.31 : x
  2. Step 2: Convert to fraction form
    2,939.09/4,051.42 = 2,098.31/x
  3. Step 3: Cross multiply
    2,939.09x = 4,051.42 × 2,098.31
  4. Step 4: Simplify right side
    2,939.09x = 8,501,109.60
  5. Step 5: Solve for x
    x = 8,501,109.60/2,939.09
  6. Step 6: Final answer
    x = 2,892.43

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1.5x scale

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.