Home / 1,273.46-1,907.76-1,110.66

Finding the Fourth Proportional to 1,273.46, 1,907.76 and 1,110.66

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Solution

The fourth proportional to 1,273.46, 1,907.76 and 1,110.66 is: 1,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.46 : 1,907.76 = 1,110.66 : x
  2. Step 2: Convert to fraction form
    1,273.46/1,907.76 = 1,110.66/x
  3. Step 3: Cross multiply
    1,273.46x = 1,907.76 × 1,110.66
  4. Step 4: Simplify right side
    1,273.46x = 2,118,872.72
  5. Step 5: Solve for x
    x = 2,118,872.72/1,273.46
  6. Step 6: Final answer
    x = 1,663.87

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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.