Home / 3,004.07-4,506.09-812.80

Finding the Fourth Proportional to 3,004.07, 4,506.09 and 812.80

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Solution

The fourth proportional to 3,004.07, 4,506.09 and 812.80 is: 1,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,004.07 : 4,506.09 = 812.80 : x
  2. Step 2: Convert to fraction form
    3,004.07/4,506.09 = 812.80/x
  3. Step 3: Cross multiply
    3,004.07x = 4,506.09 × 812.80
  4. Step 4: Simplify right side
    3,004.07x = 3,662,527.42
  5. Step 5: Solve for x
    x = 3,662,527.42/3,004.07
  6. Step 6: Final answer
    x = 1,219.19

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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.