Home / 1,273.08-1,903.86-1,257.24

Finding the Fourth Proportional to 1,273.08, 1,903.86 and 1,257.24

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Solution

The fourth proportional to 1,273.08, 1,903.86 and 1,257.24 is: 1,880.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.08 : 1,903.86 = 1,257.24 : x
  2. Step 2: Convert to fraction form
    1,273.08/1,903.86 = 1,257.24/x
  3. Step 3: Cross multiply
    1,273.08x = 1,903.86 × 1,257.24
  4. Step 4: Simplify right side
    1,273.08x = 2,393,608.95
  5. Step 5: Solve for x
    x = 2,393,608.95/1,273.08
  6. Step 6: Final answer
    x = 1,880.17

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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.