Home / 2,816.36-3,886.04-1,767.95

Finding the Fourth Proportional to 2,816.36, 3,886.04 and 1,767.95

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Solution

The fourth proportional to 2,816.36, 3,886.04 and 1,767.95 is: 2,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.36 : 3,886.04 = 1,767.95 : x
  2. Step 2: Convert to fraction form
    2,816.36/3,886.04 = 1,767.95/x
  3. Step 3: Cross multiply
    2,816.36x = 3,886.04 × 1,767.95
  4. Step 4: Simplify right side
    2,816.36x = 6,870,324.42
  5. Step 5: Solve for x
    x = 6,870,324.42/2,816.36
  6. Step 6: Final answer
    x = 2,439.43

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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.