Home / 1,945.68-2,918.52-484.80

Finding the Fourth Proportional to 1,945.68, 2,918.52 and 484.80

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Solution

The fourth proportional to 1,945.68, 2,918.52 and 484.80 is: 727.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.68 : 2,918.52 = 484.80 : x
  2. Step 2: Convert to fraction form
    1,945.68/2,918.52 = 484.80/x
  3. Step 3: Cross multiply
    1,945.68x = 2,918.52 × 484.80
  4. Step 4: Simplify right side
    1,945.68x = 1,414,898.50
  5. Step 5: Solve for x
    x = 1,414,898.50/1,945.68
  6. Step 6: Final answer
    x = 727.20

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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.