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Finding the Fourth Proportional to 1,984.08, 2,738.16 and 1,362

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Solution

The fourth proportional to 1,984.08, 2,738.16 and 1,362 is: 1,879.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.08 : 2,738.16 = 1,362 : x
  2. Step 2: Convert to fraction form
    1,984.08/2,738.16 = 1,362/x
  3. Step 3: Cross multiply
    1,984.08x = 2,738.16 × 1,362
  4. Step 4: Simplify right side
    1,984.08x = 3,729,373.92
  5. Step 5: Solve for x
    x = 3,729,373.92/1,984.08
  6. Step 6: Final answer
    x = 1,879.65

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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.