Home / 1,296.85-1,945.38-556.49

Finding the Fourth Proportional to 1,296.85, 1,945.38 and 556.49

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Solution

The fourth proportional to 1,296.85, 1,945.38 and 556.49 is: 834.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296.85 : 1,945.38 = 556.49 : x
  2. Step 2: Convert to fraction form
    1,296.85/1,945.38 = 556.49/x
  3. Step 3: Cross multiply
    1,296.85x = 1,945.38 × 556.49
  4. Step 4: Simplify right side
    1,296.85x = 1,082,583.12
  5. Step 5: Solve for x
    x = 1,082,583.12/1,296.85
  6. Step 6: Final answer
    x = 834.78

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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.