Home / 2,418.59-3,632.19-1,980.68

Finding the Fourth Proportional to 2,418.59, 3,632.19 and 1,980.68

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Solution

The fourth proportional to 2,418.59, 3,632.19 and 1,980.68 is: 2,974.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.59 : 3,632.19 = 1,980.68 : x
  2. Step 2: Convert to fraction form
    2,418.59/3,632.19 = 1,980.68/x
  3. Step 3: Cross multiply
    2,418.59x = 3,632.19 × 1,980.68
  4. Step 4: Simplify right side
    2,418.59x = 7,194,187.93
  5. Step 5: Solve for x
    x = 7,194,187.93/2,418.59
  6. Step 6: Final answer
    x = 2,974.54

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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.