Home / 2,680.65-4,021.25-925.43

Finding the Fourth Proportional to 2,680.65, 4,021.25 and 925.43

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Solution

The fourth proportional to 2,680.65, 4,021.25 and 925.43 is: 1,388.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.65 : 4,021.25 = 925.43 : x
  2. Step 2: Convert to fraction form
    2,680.65/4,021.25 = 925.43/x
  3. Step 3: Cross multiply
    2,680.65x = 4,021.25 × 925.43
  4. Step 4: Simplify right side
    2,680.65x = 3,721,360.65
  5. Step 5: Solve for x
    x = 3,721,360.65/2,680.65
  6. Step 6: Final answer
    x = 1,388.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.