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Finding the Fourth Proportional to 2,678.73, 4,018.11 and 1,036.05

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Solution

The fourth proportional to 2,678.73, 4,018.11 and 1,036.05 is: 1,554.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.73 : 4,018.11 = 1,036.05 : x
  2. Step 2: Convert to fraction form
    2,678.73/4,018.11 = 1,036.05/x
  3. Step 3: Cross multiply
    2,678.73x = 4,018.11 × 1,036.05
  4. Step 4: Simplify right side
    2,678.73x = 4,162,962.87
  5. Step 5: Solve for x
    x = 4,162,962.87/2,678.73
  6. Step 6: Final answer
    x = 1,554.08

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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.