Home / 4,288.19-6,431.17-1,821.74

Finding the Fourth Proportional to 4,288.19, 6,431.17 and 1,821.74

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Solution

The fourth proportional to 4,288.19, 6,431.17 and 1,821.74 is: 2,732.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.19 : 6,431.17 = 1,821.74 : x
  2. Step 2: Convert to fraction form
    4,288.19/6,431.17 = 1,821.74/x
  3. Step 3: Cross multiply
    4,288.19x = 6,431.17 × 1,821.74
  4. Step 4: Simplify right side
    4,288.19x = 11,715,919.64
  5. Step 5: Solve for x
    x = 11,715,919.64/4,288.19
  6. Step 6: Final answer
    x = 2,732.14

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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.