Home / 3,218.13-4,827.18-2,114.51

Finding the Fourth Proportional to 3,218.13, 4,827.18 and 2,114.51

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Solution

The fourth proportional to 3,218.13, 4,827.18 and 2,114.51 is: 3,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.13 : 4,827.18 = 2,114.51 : x
  2. Step 2: Convert to fraction form
    3,218.13/4,827.18 = 2,114.51/x
  3. Step 3: Cross multiply
    3,218.13x = 4,827.18 × 2,114.51
  4. Step 4: Simplify right side
    3,218.13x = 10,207,120.38
  5. Step 5: Solve for x
    x = 10,207,120.38/3,218.13
  6. Step 6: Final answer
    x = 3,171.76

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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.