Home / 2,431.97-3,644.54-1,390.42

Finding the Fourth Proportional to 2,431.97, 3,644.54 and 1,390.42

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Solution

The fourth proportional to 2,431.97, 3,644.54 and 1,390.42 is: 2,083.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.97 : 3,644.54 = 1,390.42 : x
  2. Step 2: Convert to fraction form
    2,431.97/3,644.54 = 1,390.42/x
  3. Step 3: Cross multiply
    2,431.97x = 3,644.54 × 1,390.42
  4. Step 4: Simplify right side
    2,431.97x = 5,067,423.08
  5. Step 5: Solve for x
    x = 5,067,423.08/2,431.97
  6. Step 6: Final answer
    x = 2,083.67

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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.