Home / 1,819.86-2,511.78-1,073.53

Finding the Fourth Proportional to 1,819.86, 2,511.78 and 1,073.53

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Solution

The fourth proportional to 1,819.86, 2,511.78 and 1,073.53 is: 1,481.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.86 : 2,511.78 = 1,073.53 : x
  2. Step 2: Convert to fraction form
    1,819.86/2,511.78 = 1,073.53/x
  3. Step 3: Cross multiply
    1,819.86x = 2,511.78 × 1,073.53
  4. Step 4: Simplify right side
    1,819.86x = 2,696,471.18
  5. Step 5: Solve for x
    x = 2,696,471.18/1,819.86
  6. Step 6: Final answer
    x = 1,481.69

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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.