Home / 2,718.40-4,073.88-1,984.54

Finding the Fourth Proportional to 2,718.40, 4,073.88 and 1,984.54

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Solution

The fourth proportional to 2,718.40, 4,073.88 and 1,984.54 is: 2,974.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.40 : 4,073.88 = 1,984.54 : x
  2. Step 2: Convert to fraction form
    2,718.40/4,073.88 = 1,984.54/x
  3. Step 3: Cross multiply
    2,718.40x = 4,073.88 × 1,984.54
  4. Step 4: Simplify right side
    2,718.40x = 8,084,777.82
  5. Step 5: Solve for x
    x = 8,084,777.82/2,718.40
  6. Step 6: Final answer
    x = 2,974.09

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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.