Home / 1,813.07-2,500.64-1,105.03

Finding the Fourth Proportional to 1,813.07, 2,500.64 and 1,105.03

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Solution

The fourth proportional to 1,813.07, 2,500.64 and 1,105.03 is: 1,524.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.07 : 2,500.64 = 1,105.03 : x
  2. Step 2: Convert to fraction form
    1,813.07/2,500.64 = 1,105.03/x
  3. Step 3: Cross multiply
    1,813.07x = 2,500.64 × 1,105.03
  4. Step 4: Simplify right side
    1,813.07x = 2,763,276.69
  5. Step 5: Solve for x
    x = 2,763,276.69/1,813.07
  6. Step 6: Final answer
    x = 1,524.09

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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.