Home / 3,073.29-4,603.79-1,978.43

Finding the Fourth Proportional to 3,073.29, 4,603.79 and 1,978.43

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Solution

The fourth proportional to 3,073.29, 4,603.79 and 1,978.43 is: 2,963.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,073.29 : 4,603.79 = 1,978.43 : x
  2. Step 2: Convert to fraction form
    3,073.29/4,603.79 = 1,978.43/x
  3. Step 3: Cross multiply
    3,073.29x = 4,603.79 × 1,978.43
  4. Step 4: Simplify right side
    3,073.29x = 9,108,247.05
  5. Step 5: Solve for x
    x = 9,108,247.05/3,073.29
  6. Step 6: Final answer
    x = 2,963.68

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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.