Home / 4,940.02-6,816.29-2,815.51

Finding the Fourth Proportional to 4,940.02, 6,816.29 and 2,815.51

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Solution

The fourth proportional to 4,940.02, 6,816.29 and 2,815.51 is: 3,884.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.02 : 6,816.29 = 2,815.51 : x
  2. Step 2: Convert to fraction form
    4,940.02/6,816.29 = 2,815.51/x
  3. Step 3: Cross multiply
    4,940.02x = 6,816.29 × 2,815.51
  4. Step 4: Simplify right side
    4,940.02x = 19,191,318.58
  5. Step 5: Solve for x
    x = 19,191,318.58/4,940.02
  6. Step 6: Final answer
    x = 3,884.87

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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.