Home / 3,320.88-4,582.78-1,977.41

Finding the Fourth Proportional to 3,320.88, 4,582.78 and 1,977.41

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Solution

The fourth proportional to 3,320.88, 4,582.78 and 1,977.41 is: 2,728.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.88 : 4,582.78 = 1,977.41 : x
  2. Step 2: Convert to fraction form
    3,320.88/4,582.78 = 1,977.41/x
  3. Step 3: Cross multiply
    3,320.88x = 4,582.78 × 1,977.41
  4. Step 4: Simplify right side
    3,320.88x = 9,062,012.09
  5. Step 5: Solve for x
    x = 9,062,012.09/3,320.88
  6. Step 6: Final answer
    x = 2,728.80

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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.