Home / 3,945.53-5,918.04-1,480.14

Finding the Fourth Proportional to 3,945.53, 5,918.04 and 1,480.14

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Solution

The fourth proportional to 3,945.53, 5,918.04 and 1,480.14 is: 2,220.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.53 : 5,918.04 = 1,480.14 : x
  2. Step 2: Convert to fraction form
    3,945.53/5,918.04 = 1,480.14/x
  3. Step 3: Cross multiply
    3,945.53x = 5,918.04 × 1,480.14
  4. Step 4: Simplify right side
    3,945.53x = 8,759,527.73
  5. Step 5: Solve for x
    x = 8,759,527.73/3,945.53
  6. Step 6: Final answer
    x = 2,220.12

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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.