Home / 2,728.80-3,763.44-2,031.84

Finding the Fourth Proportional to 2,728.80, 3,763.44 and 2,031.84

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Solution

The fourth proportional to 2,728.80, 3,763.44 and 2,031.84 is: 2,802.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.80 : 3,763.44 = 2,031.84 : x
  2. Step 2: Convert to fraction form
    2,728.80/3,763.44 = 2,031.84/x
  3. Step 3: Cross multiply
    2,728.80x = 3,763.44 × 2,031.84
  4. Step 4: Simplify right side
    2,728.80x = 7,646,707.93
  5. Step 5: Solve for x
    x = 7,646,707.93/2,728.80
  6. Step 6: Final answer
    x = 2,802.22

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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.