Home / 3,720.27-5,127.21-3,613.65

Finding the Fourth Proportional to 3,720.27, 5,127.21 and 3,613.65

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Solution

The fourth proportional to 3,720.27, 5,127.21 and 3,613.65 is: 4,980.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.27 : 5,127.21 = 3,613.65 : x
  2. Step 2: Convert to fraction form
    3,720.27/5,127.21 = 3,613.65/x
  3. Step 3: Cross multiply
    3,720.27x = 5,127.21 × 3,613.65
  4. Step 4: Simplify right side
    3,720.27x = 18,527,942.42
  5. Step 5: Solve for x
    x = 18,527,942.42/3,720.27
  6. Step 6: Final answer
    x = 4,980.27

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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.