Home / 2,147.04-3,218.94-1,324.89

Finding the Fourth Proportional to 2,147.04, 3,218.94 and 1,324.89

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Solution

The fourth proportional to 2,147.04, 3,218.94 and 1,324.89 is: 1,986.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.04 : 3,218.94 = 1,324.89 : x
  2. Step 2: Convert to fraction form
    2,147.04/3,218.94 = 1,324.89/x
  3. Step 3: Cross multiply
    2,147.04x = 3,218.94 × 1,324.89
  4. Step 4: Simplify right side
    2,147.04x = 4,264,741.42
  5. Step 5: Solve for x
    x = 4,264,741.42/2,147.04
  6. Step 6: Final answer
    x = 1,986.34

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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.