Home / 2,891.14-4,336.70-1,428.82

Finding the Fourth Proportional to 2,891.14, 4,336.70 and 1,428.82

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Solution

The fourth proportional to 2,891.14, 4,336.70 and 1,428.82 is: 2,143.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.14 : 4,336.70 = 1,428.82 : x
  2. Step 2: Convert to fraction form
    2,891.14/4,336.70 = 1,428.82/x
  3. Step 3: Cross multiply
    2,891.14x = 4,336.70 × 1,428.82
  4. Step 4: Simplify right side
    2,891.14x = 6,196,345.58
  5. Step 5: Solve for x
    x = 6,196,345.58/2,891.14
  6. Step 6: Final answer
    x = 2,143.22

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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.