Home / 1,273.12-1,907.52-1,013.92

Finding the Fourth Proportional to 1,273.12, 1,907.52 and 1,013.92

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Solution

The fourth proportional to 1,273.12, 1,907.52 and 1,013.92 is: 1,519.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.12 : 1,907.52 = 1,013.92 : x
  2. Step 2: Convert to fraction form
    1,273.12/1,907.52 = 1,013.92/x
  3. Step 3: Cross multiply
    1,273.12x = 1,907.52 × 1,013.92
  4. Step 4: Simplify right side
    1,273.12x = 1,934,072.68
  5. Step 5: Solve for x
    x = 1,934,072.68/1,273.12
  6. Step 6: Final answer
    x = 1,519.16

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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.