Home / 3,146.88-4,343.32-1,820.52

Finding the Fourth Proportional to 3,146.88, 4,343.32 and 1,820.52

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Solution

The fourth proportional to 3,146.88, 4,343.32 and 1,820.52 is: 2,512.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.88 : 4,343.32 = 1,820.52 : x
  2. Step 2: Convert to fraction form
    3,146.88/4,343.32 = 1,820.52/x
  3. Step 3: Cross multiply
    3,146.88x = 4,343.32 × 1,820.52
  4. Step 4: Simplify right side
    3,146.88x = 7,907,100.93
  5. Step 5: Solve for x
    x = 7,907,100.93/3,146.88
  6. Step 6: Final answer
    x = 2,512.68

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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.