Home / 2,554.29-3,815.90-1,622.38

Finding the Fourth Proportional to 2,554.29, 3,815.90 and 1,622.38

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Solution

The fourth proportional to 2,554.29, 3,815.90 and 1,622.38 is: 2,423.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,554.29 : 3,815.90 = 1,622.38 : x
  2. Step 2: Convert to fraction form
    2,554.29/3,815.90 = 1,622.38/x
  3. Step 3: Cross multiply
    2,554.29x = 3,815.90 × 1,622.38
  4. Step 4: Simplify right side
    2,554.29x = 6,190,839.84
  5. Step 5: Solve for x
    x = 6,190,839.84/2,554.29
  6. Step 6: Final answer
    x = 2,423.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.