Home / 3,614.01-4,986.18-2,121.90

Finding the Fourth Proportional to 3,614.01, 4,986.18 and 2,121.90

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Solution

The fourth proportional to 3,614.01, 4,986.18 and 2,121.90 is: 2,927.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.01 : 4,986.18 = 2,121.90 : x
  2. Step 2: Convert to fraction form
    3,614.01/4,986.18 = 2,121.90/x
  3. Step 3: Cross multiply
    3,614.01x = 4,986.18 × 2,121.90
  4. Step 4: Simplify right side
    3,614.01x = 10,580,175.34
  5. Step 5: Solve for x
    x = 10,580,175.34/3,614.01
  6. Step 6: Final answer
    x = 2,927.54

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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.