Home / 3,743.44-5,615.76-1,278

Finding the Fourth Proportional to 3,743.44, 5,615.76 and 1,278

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Solution

The fourth proportional to 3,743.44, 5,615.76 and 1,278 is: 1,917.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,743.44 : 5,615.76 = 1,278 : x
  2. Step 2: Convert to fraction form
    3,743.44/5,615.76 = 1,278/x
  3. Step 3: Cross multiply
    3,743.44x = 5,615.76 × 1,278
  4. Step 4: Simplify right side
    3,743.44x = 7,176,941.28
  5. Step 5: Solve for x
    x = 7,176,941.28/3,743.44
  6. Step 6: Final answer
    x = 1,917.20

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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.