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Finding the Fourth Proportional to 3,005.00, 4,146.49 and 1,678.52

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Solution

The fourth proportional to 3,005.00, 4,146.49 and 1,678.52 is: 2,316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.00 : 4,146.49 = 1,678.52 : x
  2. Step 2: Convert to fraction form
    3,005.00/4,146.49 = 1,678.52/x
  3. Step 3: Cross multiply
    3,005.00x = 4,146.49 × 1,678.52
  4. Step 4: Simplify right side
    3,005.00x = 6,959,978.86
  5. Step 5: Solve for x
    x = 6,959,978.86/3,005.00
  6. Step 6: Final answer
    x = 2,316.13

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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.