Home / 1,819.65-2,511.77-1,298.01

Finding the Fourth Proportional to 1,819.65, 2,511.77 and 1,298.01

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Solution

The fourth proportional to 1,819.65, 2,511.77 and 1,298.01 is: 1,791.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.65 : 2,511.77 = 1,298.01 : x
  2. Step 2: Convert to fraction form
    1,819.65/2,511.77 = 1,298.01/x
  3. Step 3: Cross multiply
    1,819.65x = 2,511.77 × 1,298.01
  4. Step 4: Simplify right side
    1,819.65x = 3,260,296.09
  5. Step 5: Solve for x
    x = 3,260,296.09/1,819.65
  6. Step 6: Final answer
    x = 1,791.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.