Home / 3,320.30-4,983.53-1,678

Finding the Fourth Proportional to 3,320.30, 4,983.53 and 1,678

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Solution

The fourth proportional to 3,320.30, 4,983.53 and 1,678 is: 2,518.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.30 : 4,983.53 = 1,678 : x
  2. Step 2: Convert to fraction form
    3,320.30/4,983.53 = 1,678/x
  3. Step 3: Cross multiply
    3,320.30x = 4,983.53 × 1,678
  4. Step 4: Simplify right side
    3,320.30x = 8,362,363.34
  5. Step 5: Solve for x
    x = 8,362,363.34/3,320.30
  6. Step 6: Final answer
    x = 2,518.56

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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.