Home / 1,292.76-1,936.64-1,059.75

Finding the Fourth Proportional to 1,292.76, 1,936.64 and 1,059.75

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Solution

The fourth proportional to 1,292.76, 1,936.64 and 1,059.75 is: 1,587.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292.76 : 1,936.64 = 1,059.75 : x
  2. Step 2: Convert to fraction form
    1,292.76/1,936.64 = 1,059.75/x
  3. Step 3: Cross multiply
    1,292.76x = 1,936.64 × 1,059.75
  4. Step 4: Simplify right side
    1,292.76x = 2,052,356.89
  5. Step 5: Solve for x
    x = 2,052,356.89/1,292.76
  6. Step 6: Final answer
    x = 1,587.58

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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.