Home / 2,418.61-3,329.48-2,169.84

Finding the Fourth Proportional to 2,418.61, 3,329.48 and 2,169.84

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Solution

The fourth proportional to 2,418.61, 3,329.48 and 2,169.84 is: 2,987.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.61 : 3,329.48 = 2,169.84 : x
  2. Step 2: Convert to fraction form
    2,418.61/3,329.48 = 2,169.84/x
  3. Step 3: Cross multiply
    2,418.61x = 3,329.48 × 2,169.84
  4. Step 4: Simplify right side
    2,418.61x = 7,224,431.96
  5. Step 5: Solve for x
    x = 7,224,431.96/2,418.61
  6. Step 6: Final answer
    x = 2,987.02

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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.