Home / 3,320.78-4,582.77-1,828.80

Finding the Fourth Proportional to 3,320.78, 4,582.77 and 1,828.80

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Solution

The fourth proportional to 3,320.78, 4,582.77 and 1,828.80 is: 2,523.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.78 : 4,582.77 = 1,828.80 : x
  2. Step 2: Convert to fraction form
    3,320.78/4,582.77 = 1,828.80/x
  3. Step 3: Cross multiply
    3,320.78x = 4,582.77 × 1,828.80
  4. Step 4: Simplify right side
    3,320.78x = 8,380,969.78
  5. Step 5: Solve for x
    x = 8,380,969.78/3,320.78
  6. Step 6: Final answer
    x = 2,523.80

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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.