Home / 3,873.65-5,345.78-2,382.08

Finding the Fourth Proportional to 3,873.65, 5,345.78 and 2,382.08

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Solution

The fourth proportional to 3,873.65, 5,345.78 and 2,382.08 is: 3,287.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.65 : 5,345.78 = 2,382.08 : x
  2. Step 2: Convert to fraction form
    3,873.65/5,345.78 = 2,382.08/x
  3. Step 3: Cross multiply
    3,873.65x = 5,345.78 × 2,382.08
  4. Step 4: Simplify right side
    3,873.65x = 12,734,036.98
  5. Step 5: Solve for x
    x = 12,734,036.98/3,873.65
  6. Step 6: Final answer
    x = 3,287.35

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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.