Home / 2,678.26-4,017.06-730.66

Finding the Fourth Proportional to 2,678.26, 4,017.06 and 730.66

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Solution

The fourth proportional to 2,678.26, 4,017.06 and 730.66 is: 1,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.26 : 4,017.06 = 730.66 : x
  2. Step 2: Convert to fraction form
    2,678.26/4,017.06 = 730.66/x
  3. Step 3: Cross multiply
    2,678.26x = 4,017.06 × 730.66
  4. Step 4: Simplify right side
    2,678.26x = 2,935,105.06
  5. Step 5: Solve for x
    x = 2,935,105.06/2,678.26
  6. Step 6: Final answer
    x = 1,095.90

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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.