Home / 4,613.64-6,369.62-3,121.80

Finding the Fourth Proportional to 4,613.64, 6,369.62 and 3,121.80

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Solution

The fourth proportional to 4,613.64, 6,369.62 and 3,121.80 is: 4,309.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,613.64 : 6,369.62 = 3,121.80 : x
  2. Step 2: Convert to fraction form
    4,613.64/6,369.62 = 3,121.80/x
  3. Step 3: Cross multiply
    4,613.64x = 6,369.62 × 3,121.80
  4. Step 4: Simplify right side
    4,613.64x = 19,884,679.72
  5. Step 5: Solve for x
    x = 19,884,679.72/4,613.64
  6. Step 6: Final answer
    x = 4,309.98

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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.