Home / 3,475.78-5,213.63-1,395.75

Finding the Fourth Proportional to 3,475.78, 5,213.63 and 1,395.75

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Solution

The fourth proportional to 3,475.78, 5,213.63 and 1,395.75 is: 2,093.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,475.78 : 5,213.63 = 1,395.75 : x
  2. Step 2: Convert to fraction form
    3,475.78/5,213.63 = 1,395.75/x
  3. Step 3: Cross multiply
    3,475.78x = 5,213.63 × 1,395.75
  4. Step 4: Simplify right side
    3,475.78x = 7,276,917.79
  5. Step 5: Solve for x
    x = 7,276,917.79/3,475.78
  6. Step 6: Final answer
    x = 2,093.61

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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.