Home / 3,613.99-4,986.46-2,121.83

Finding the Fourth Proportional to 3,613.99, 4,986.46 and 2,121.83

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Solution

The fourth proportional to 3,613.99, 4,986.46 and 2,121.83 is: 2,927.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.99 : 4,986.46 = 2,121.83 : x
  2. Step 2: Convert to fraction form
    3,613.99/4,986.46 = 2,121.83/x
  3. Step 3: Cross multiply
    3,613.99x = 4,986.46 × 2,121.83
  4. Step 4: Simplify right side
    3,613.99x = 10,580,420.42
  5. Step 5: Solve for x
    x = 10,580,420.42/3,613.99
  6. Step 6: Final answer
    x = 2,927.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.