Home / 1,273.59-1,907.55-1,172.43

Finding the Fourth Proportional to 1,273.59, 1,907.55 and 1,172.43

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Solution

The fourth proportional to 1,273.59, 1,907.55 and 1,172.43 is: 1,756.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.59 : 1,907.55 = 1,172.43 : x
  2. Step 2: Convert to fraction form
    1,273.59/1,907.55 = 1,172.43/x
  3. Step 3: Cross multiply
    1,273.59x = 1,907.55 × 1,172.43
  4. Step 4: Simplify right side
    1,273.59x = 2,236,468.85
  5. Step 5: Solve for x
    x = 2,236,468.85/1,273.59
  6. Step 6: Final answer
    x = 1,756.04

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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.