Home / 2,375.76-3,278.04-1,380.51

Finding the Fourth Proportional to 2,375.76, 3,278.04 and 1,380.51

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Solution

The fourth proportional to 2,375.76, 3,278.04 and 1,380.51 is: 1,904.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,375.76 : 3,278.04 = 1,380.51 : x
  2. Step 2: Convert to fraction form
    2,375.76/3,278.04 = 1,380.51/x
  3. Step 3: Cross multiply
    2,375.76x = 3,278.04 × 1,380.51
  4. Step 4: Simplify right side
    2,375.76x = 4,525,367.00
  5. Step 5: Solve for x
    x = 4,525,367.00/2,375.76
  6. Step 6: Final answer
    x = 1,904.81

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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.