Home / 4,284.45-6,428.06-1,821.38

Finding the Fourth Proportional to 4,284.45, 6,428.06 and 1,821.38

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Solution

The fourth proportional to 4,284.45, 6,428.06 and 1,821.38 is: 2,732.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,284.45 : 6,428.06 = 1,821.38 : x
  2. Step 2: Convert to fraction form
    4,284.45/6,428.06 = 1,821.38/x
  3. Step 3: Cross multiply
    4,284.45x = 6,428.06 × 1,821.38
  4. Step 4: Simplify right side
    4,284.45x = 11,707,898.68
  5. Step 5: Solve for x
    x = 11,707,898.68/4,284.45
  6. Step 6: Final answer
    x = 2,732.65

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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.