Home / 3,071.39-4,238.73-1,892.53

Finding the Fourth Proportional to 3,071.39, 4,238.73 and 1,892.53

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Solution

The fourth proportional to 3,071.39, 4,238.73 and 1,892.53 is: 2,611.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.39 : 4,238.73 = 1,892.53 : x
  2. Step 2: Convert to fraction form
    3,071.39/4,238.73 = 1,892.53/x
  3. Step 3: Cross multiply
    3,071.39x = 4,238.73 × 1,892.53
  4. Step 4: Simplify right side
    3,071.39x = 8,021,928.99
  5. Step 5: Solve for x
    x = 8,021,928.99/3,071.39
  6. Step 6: Final answer
    x = 2,611.83

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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.