Home / 3,784.05-5,222.15-2,291.13

Finding the Fourth Proportional to 3,784.05, 5,222.15 and 2,291.13

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Solution

The fourth proportional to 3,784.05, 5,222.15 and 2,291.13 is: 3,161.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.05 : 5,222.15 = 2,291.13 : x
  2. Step 2: Convert to fraction form
    3,784.05/5,222.15 = 2,291.13/x
  3. Step 3: Cross multiply
    3,784.05x = 5,222.15 × 2,291.13
  4. Step 4: Simplify right side
    3,784.05x = 11,964,613.07
  5. Step 5: Solve for x
    x = 11,964,613.07/3,784.05
  6. Step 6: Final answer
    x = 3,161.85

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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.