Home / 1,245.26-1,868.27-552.11

Finding the Fourth Proportional to 1,245.26, 1,868.27 and 552.11

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Solution

The fourth proportional to 1,245.26, 1,868.27 and 552.11 is: 828.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245.26 : 1,868.27 = 552.11 : x
  2. Step 2: Convert to fraction form
    1,245.26/1,868.27 = 552.11/x
  3. Step 3: Cross multiply
    1,245.26x = 1,868.27 × 552.11
  4. Step 4: Simplify right side
    1,245.26x = 1,031,478.45
  5. Step 5: Solve for x
    x = 1,031,478.45/1,245.26
  6. Step 6: Final answer
    x = 828.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.