Home / 1,095.24-1,511.88-629.76

Finding the Fourth Proportional to 1,095.24, 1,511.88 and 629.76

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Solution

The fourth proportional to 1,095.24, 1,511.88 and 629.76 is: 869.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095.24 : 1,511.88 = 629.76 : x
  2. Step 2: Convert to fraction form
    1,095.24/1,511.88 = 629.76/x
  3. Step 3: Cross multiply
    1,095.24x = 1,511.88 × 629.76
  4. Step 4: Simplify right side
    1,095.24x = 952,121.55
  5. Step 5: Solve for x
    x = 952,121.55/1,095.24
  6. Step 6: Final answer
    x = 869.33

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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.