Home / 5,274.05-7,911.14-1,378.35

Finding the Fourth Proportional to 5,274.05, 7,911.14 and 1,378.35

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Solution

The fourth proportional to 5,274.05, 7,911.14 and 1,378.35 is: 2,067.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.05 : 7,911.14 = 1,378.35 : x
  2. Step 2: Convert to fraction form
    5,274.05/7,911.14 = 1,378.35/x
  3. Step 3: Cross multiply
    5,274.05x = 7,911.14 × 1,378.35
  4. Step 4: Simplify right side
    5,274.05x = 10,904,312.93
  5. Step 5: Solve for x
    x = 10,904,312.93/5,274.05
  6. Step 6: Final answer
    x = 2,067.54

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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.