Home / 1,803.25-2,488.76-1,105.03

Finding the Fourth Proportional to 1,803.25, 2,488.76 and 1,105.03

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Solution

The fourth proportional to 1,803.25, 2,488.76 and 1,105.03 is: 1,525.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.25 : 2,488.76 = 1,105.03 : x
  2. Step 2: Convert to fraction form
    1,803.25/2,488.76 = 1,105.03/x
  3. Step 3: Cross multiply
    1,803.25x = 2,488.76 × 1,105.03
  4. Step 4: Simplify right side
    1,803.25x = 2,750,148.94
  5. Step 5: Solve for x
    x = 2,750,148.94/1,803.25
  6. Step 6: Final answer
    x = 1,525.11

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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.