Home / 4,218.12-5,820.54-2,449.38

Finding the Fourth Proportional to 4,218.12, 5,820.54 and 2,449.38

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Solution

The fourth proportional to 4,218.12, 5,820.54 and 2,449.38 is: 3,379.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.12 : 5,820.54 = 2,449.38 : x
  2. Step 2: Convert to fraction form
    4,218.12/5,820.54 = 2,449.38/x
  3. Step 3: Cross multiply
    4,218.12x = 5,820.54 × 2,449.38
  4. Step 4: Simplify right side
    4,218.12x = 14,256,714.27
  5. Step 5: Solve for x
    x = 14,256,714.27/4,218.12
  6. Step 6: Final answer
    x = 3,379.87

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Half scale
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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.