Home / 2,939.29-4,055.67-1,995.84

Finding the Fourth Proportional to 2,939.29, 4,055.67 and 1,995.84

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Solution

The fourth proportional to 2,939.29, 4,055.67 and 1,995.84 is: 2,753.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.29 : 4,055.67 = 1,995.84 : x
  2. Step 2: Convert to fraction form
    2,939.29/4,055.67 = 1,995.84/x
  3. Step 3: Cross multiply
    2,939.29x = 4,055.67 × 1,995.84
  4. Step 4: Simplify right side
    2,939.29x = 8,094,468.41
  5. Step 5: Solve for x
    x = 8,094,468.41/2,939.29
  6. Step 6: Final answer
    x = 2,753.89

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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.