Home / 2,620.65-3,616.53-1,441.70

Finding the Fourth Proportional to 2,620.65, 3,616.53 and 1,441.70

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Solution

The fourth proportional to 2,620.65, 3,616.53 and 1,441.70 is: 1,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.65 : 3,616.53 = 1,441.70 : x
  2. Step 2: Convert to fraction form
    2,620.65/3,616.53 = 1,441.70/x
  3. Step 3: Cross multiply
    2,620.65x = 3,616.53 × 1,441.70
  4. Step 4: Simplify right side
    2,620.65x = 5,213,933.22
  5. Step 5: Solve for x
    x = 5,213,933.22/2,620.65
  6. Step 6: Final answer
    x = 1,989.56

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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.