Home / 3,578.45-4,932.57-2,821.00

Finding the Fourth Proportional to 3,578.45, 4,932.57 and 2,821.00

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Solution

The fourth proportional to 3,578.45, 4,932.57 and 2,821.00 is: 3,888.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.45 : 4,932.57 = 2,821.00 : x
  2. Step 2: Convert to fraction form
    3,578.45/4,932.57 = 2,821.00/x
  3. Step 3: Cross multiply
    3,578.45x = 4,932.57 × 2,821.00
  4. Step 4: Simplify right side
    3,578.45x = 13,914,784.48
  5. Step 5: Solve for x
    x = 13,914,784.48/3,578.45
  6. Step 6: Final answer
    x = 3,888.49

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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.