Home / 2,680.86-4,021.80-950.70

Finding the Fourth Proportional to 2,680.86, 4,021.80 and 950.70

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Solution

The fourth proportional to 2,680.86, 4,021.80 and 950.70 is: 1,426.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.86 : 4,021.80 = 950.70 : x
  2. Step 2: Convert to fraction form
    2,680.86/4,021.80 = 950.70/x
  3. Step 3: Cross multiply
    2,680.86x = 4,021.80 × 950.70
  4. Step 4: Simplify right side
    2,680.86x = 3,823,525.26
  5. Step 5: Solve for x
    x = 3,823,525.26/2,680.86
  6. Step 6: Final answer
    x = 1,426.23

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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.