Home / 1,813.68-2,503.44-1,105.92

Finding the Fourth Proportional to 1,813.68, 2,503.44 and 1,105.92

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Solution

The fourth proportional to 1,813.68, 2,503.44 and 1,105.92 is: 1,526.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.68 : 2,503.44 = 1,105.92 : x
  2. Step 2: Convert to fraction form
    1,813.68/2,503.44 = 1,105.92/x
  3. Step 3: Cross multiply
    1,813.68x = 2,503.44 × 1,105.92
  4. Step 4: Simplify right side
    1,813.68x = 2,768,604.36
  5. Step 5: Solve for x
    x = 2,768,604.36/1,813.68
  6. Step 6: Final answer
    x = 1,526.51

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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.