Home / 3,036-4,189.44-1,709.28

Finding the Fourth Proportional to 3,036, 4,189.44 and 1,709.28

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Solution

The fourth proportional to 3,036, 4,189.44 and 1,709.28 is: 2,358.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036 : 4,189.44 = 1,709.28 : x
  2. Step 2: Convert to fraction form
    3,036/4,189.44 = 1,709.28/x
  3. Step 3: Cross multiply
    3,036x = 4,189.44 × 1,709.28
  4. Step 4: Simplify right side
    3,036x = 7,160,926.00
  5. Step 5: Solve for x
    x = 7,160,926.00/3,036
  6. Step 6: Final answer
    x = 2,358.67

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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.