Home / 3,137.45-4,327.88-1,956.47

Finding the Fourth Proportional to 3,137.45, 4,327.88 and 1,956.47

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Solution

The fourth proportional to 3,137.45, 4,327.88 and 1,956.47 is: 2,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.45 : 4,327.88 = 1,956.47 : x
  2. Step 2: Convert to fraction form
    3,137.45/4,327.88 = 1,956.47/x
  3. Step 3: Cross multiply
    3,137.45x = 4,327.88 × 1,956.47
  4. Step 4: Simplify right side
    3,137.45x = 8,467,335.96
  5. Step 5: Solve for x
    x = 8,467,335.96/3,137.45
  6. Step 6: Final answer
    x = 2,698.80

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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.