Home / 1,236.66-1,697.51-1,125.48

Finding the Fourth Proportional to 1,236.66, 1,697.51 and 1,125.48

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Solution

The fourth proportional to 1,236.66, 1,697.51 and 1,125.48 is: 1,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.66 : 1,697.51 = 1,125.48 : x
  2. Step 2: Convert to fraction form
    1,236.66/1,697.51 = 1,125.48/x
  3. Step 3: Cross multiply
    1,236.66x = 1,697.51 × 1,125.48
  4. Step 4: Simplify right side
    1,236.66x = 1,910,513.55
  5. Step 5: Solve for x
    x = 1,910,513.55/1,236.66
  6. Step 6: Final answer
    x = 1,544.90

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.