Home / 2,853.09-4,278.42-1,120.50

Finding the Fourth Proportional to 2,853.09, 4,278.42 and 1,120.50

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Solution

The fourth proportional to 2,853.09, 4,278.42 and 1,120.50 is: 1,680.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.09 : 4,278.42 = 1,120.50 : x
  2. Step 2: Convert to fraction form
    2,853.09/4,278.42 = 1,120.50/x
  3. Step 3: Cross multiply
    2,853.09x = 4,278.42 × 1,120.50
  4. Step 4: Simplify right side
    2,853.09x = 4,793,969.61
  5. Step 5: Solve for x
    x = 4,793,969.61/2,853.09
  6. Step 6: Final answer
    x = 1,680.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.