Home / 2,146.68-2,962.26-1,215

Finding the Fourth Proportional to 2,146.68, 2,962.26 and 1,215

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Solution

The fourth proportional to 2,146.68, 2,962.26 and 1,215 is: 1,676.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.68 : 2,962.26 = 1,215 : x
  2. Step 2: Convert to fraction form
    2,146.68/2,962.26 = 1,215/x
  3. Step 3: Cross multiply
    2,146.68x = 2,962.26 × 1,215
  4. Step 4: Simplify right side
    2,146.68x = 3,599,145.90
  5. Step 5: Solve for x
    x = 3,599,145.90/2,146.68
  6. Step 6: Final answer
    x = 1,676.61

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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.