Home / 2,409.75-3,613.21-1,176.80

Finding the Fourth Proportional to 2,409.75, 3,613.21 and 1,176.80

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Solution

The fourth proportional to 2,409.75, 3,613.21 and 1,176.80 is: 1,764.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.75 : 3,613.21 = 1,176.80 : x
  2. Step 2: Convert to fraction form
    2,409.75/3,613.21 = 1,176.80/x
  3. Step 3: Cross multiply
    2,409.75x = 3,613.21 × 1,176.80
  4. Step 4: Simplify right side
    2,409.75x = 4,252,004.52
  5. Step 5: Solve for x
    x = 4,252,004.52/2,409.75
  6. Step 6: Final answer
    x = 1,764.50

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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.