Home / 4,942.87-6,823.65-3,821.28

Finding the Fourth Proportional to 4,942.87, 6,823.65 and 3,821.28

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Solution

The fourth proportional to 4,942.87, 6,823.65 and 3,821.28 is: 5,275.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.87 : 6,823.65 = 3,821.28 : x
  2. Step 2: Convert to fraction form
    4,942.87/6,823.65 = 3,821.28/x
  3. Step 3: Cross multiply
    4,942.87x = 6,823.65 × 3,821.28
  4. Step 4: Simplify right side
    4,942.87x = 26,075,043.15
  5. Step 5: Solve for x
    x = 26,075,043.15/4,942.87
  6. Step 6: Final answer
    x = 5,275.28

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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.