Home / 2,939.49-4,056.89-1,894.59

Finding the Fourth Proportional to 2,939.49, 4,056.89 and 1,894.59

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Solution

The fourth proportional to 2,939.49, 4,056.89 and 1,894.59 is: 2,614.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.49 : 4,056.89 = 1,894.59 : x
  2. Step 2: Convert to fraction form
    2,939.49/4,056.89 = 1,894.59/x
  3. Step 3: Cross multiply
    2,939.49x = 4,056.89 × 1,894.59
  4. Step 4: Simplify right side
    2,939.49x = 7,686,133.75
  5. Step 5: Solve for x
    x = 7,686,133.75/2,939.49
  6. Step 6: Final answer
    x = 2,614.78

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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.