Home / 1,296.10-1,944.20-371.75

Finding the Fourth Proportional to 1,296.10, 1,944.20 and 371.75

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Solution

The fourth proportional to 1,296.10, 1,944.20 and 371.75 is: 557.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296.10 : 1,944.20 = 371.75 : x
  2. Step 2: Convert to fraction form
    1,296.10/1,944.20 = 371.75/x
  3. Step 3: Cross multiply
    1,296.10x = 1,944.20 × 371.75
  4. Step 4: Simplify right side
    1,296.10x = 722,756.35
  5. Step 5: Solve for x
    x = 722,756.35/1,296.10
  6. Step 6: Final answer
    x = 557.64

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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.