Home / 1,945.43-2,918.12-484.60

Finding the Fourth Proportional to 1,945.43, 2,918.12 and 484.60

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Solution

The fourth proportional to 1,945.43, 2,918.12 and 484.60 is: 726.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.43 : 2,918.12 = 484.60 : x
  2. Step 2: Convert to fraction form
    1,945.43/2,918.12 = 484.60/x
  3. Step 3: Cross multiply
    1,945.43x = 2,918.12 × 484.60
  4. Step 4: Simplify right side
    1,945.43x = 1,414,114.87
  5. Step 5: Solve for x
    x = 1,414,114.87/1,945.43
  6. Step 6: Final answer
    x = 726.89

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1.5x scale

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.