Home / 3,071.13-4,236.96-1,890.15

Finding the Fourth Proportional to 3,071.13, 4,236.96 and 1,890.15

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Solution

The fourth proportional to 3,071.13, 4,236.96 and 1,890.15 is: 2,607.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.13 : 4,236.96 = 1,890.15 : x
  2. Step 2: Convert to fraction form
    3,071.13/4,236.96 = 1,890.15/x
  3. Step 3: Cross multiply
    3,071.13x = 4,236.96 × 1,890.15
  4. Step 4: Simplify right side
    3,071.13x = 8,008,500.54
  5. Step 5: Solve for x
    x = 8,008,500.54/3,071.13
  6. Step 6: Final answer
    x = 2,607.67

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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.