Home / 2,647.14-3,962.91-1,956.90

Finding the Fourth Proportional to 2,647.14, 3,962.91 and 1,956.90

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Solution

The fourth proportional to 2,647.14, 3,962.91 and 1,956.90 is: 2,929.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647.14 : 3,962.91 = 1,956.90 : x
  2. Step 2: Convert to fraction form
    2,647.14/3,962.91 = 1,956.90/x
  3. Step 3: Cross multiply
    2,647.14x = 3,962.91 × 1,956.90
  4. Step 4: Simplify right side
    2,647.14x = 7,755,018.58
  5. Step 5: Solve for x
    x = 7,755,018.58/2,647.14
  6. Step 6: Final answer
    x = 2,929.58

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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.