Home / 2,852.80-4,279.20-2,743.45

Finding the Fourth Proportional to 2,852.80, 4,279.20 and 2,743.45

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Solution

The fourth proportional to 2,852.80, 4,279.20 and 2,743.45 is: 4,115.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,852.80 : 4,279.20 = 2,743.45 : x
  2. Step 2: Convert to fraction form
    2,852.80/4,279.20 = 2,743.45/x
  3. Step 3: Cross multiply
    2,852.80x = 4,279.20 × 2,743.45
  4. Step 4: Simplify right side
    2,852.80x = 11,739,771.24
  5. Step 5: Solve for x
    x = 11,739,771.24/2,852.80
  6. Step 6: Final answer
    x = 4,115.18

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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.