Home / 2,409.16-3,613.11-1,021.78

Finding the Fourth Proportional to 2,409.16, 3,613.11 and 1,021.78

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Solution

The fourth proportional to 2,409.16, 3,613.11 and 1,021.78 is: 1,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.16 : 3,613.11 = 1,021.78 : x
  2. Step 2: Convert to fraction form
    2,409.16/3,613.11 = 1,021.78/x
  3. Step 3: Cross multiply
    2,409.16x = 3,613.11 × 1,021.78
  4. Step 4: Simplify right side
    2,409.16x = 3,691,788.98
  5. Step 5: Solve for x
    x = 3,691,788.98/2,409.16
  6. Step 6: Final answer
    x = 1,532.40

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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.