Home / 4,112.98-5,678.51-2,853.63

Finding the Fourth Proportional to 4,112.98, 5,678.51 and 2,853.63

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Solution

The fourth proportional to 4,112.98, 5,678.51 and 2,853.63 is: 3,939.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.98 : 5,678.51 = 2,853.63 : x
  2. Step 2: Convert to fraction form
    4,112.98/5,678.51 = 2,853.63/x
  3. Step 3: Cross multiply
    4,112.98x = 5,678.51 × 2,853.63
  4. Step 4: Simplify right side
    4,112.98x = 16,204,352.22
  5. Step 5: Solve for x
    x = 16,204,352.22/4,112.98
  6. Step 6: Final answer
    x = 3,939.81

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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.