Home / 4,218.90-5,821.18-2,449.59

Finding the Fourth Proportional to 4,218.90, 5,821.18 and 2,449.59

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Solution

The fourth proportional to 4,218.90, 5,821.18 and 2,449.59 is: 3,379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.90 : 5,821.18 = 2,449.59 : x
  2. Step 2: Convert to fraction form
    4,218.90/5,821.18 = 2,449.59/x
  3. Step 3: Cross multiply
    4,218.90x = 5,821.18 × 2,449.59
  4. Step 4: Simplify right side
    4,218.90x = 14,259,504.32
  5. Step 5: Solve for x
    x = 14,259,504.32/4,218.90
  6. Step 6: Final answer
    x = 3,379.91

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1.5x scale

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.