Home / 3,311.32-4,536.55-3,186.79

Finding the Fourth Proportional to 3,311.32, 4,536.55 and 3,186.79

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Solution

The fourth proportional to 3,311.32, 4,536.55 and 3,186.79 is: 4,365.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.32 : 4,536.55 = 3,186.79 : x
  2. Step 2: Convert to fraction form
    3,311.32/4,536.55 = 3,186.79/x
  3. Step 3: Cross multiply
    3,311.32x = 4,536.55 × 3,186.79
  4. Step 4: Simplify right side
    3,311.32x = 14,457,032.17
  5. Step 5: Solve for x
    x = 14,457,032.17/3,311.32
  6. Step 6: Final answer
    x = 4,365.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.