Home / 7,351.40-11,030.30-3,453.80

Finding the Fourth Proportional to 7,351.40, 11,030.30 and 3,453.80

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Solution

The fourth proportional to 7,351.40, 11,030.30 and 3,453.80 is: 5,182.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.40 : 11,030.30 = 3,453.80 : x
  2. Step 2: Convert to fraction form
    7,351.40/11,030.30 = 3,453.80/x
  3. Step 3: Cross multiply
    7,351.40x = 11,030.30 × 3,453.80
  4. Step 4: Simplify right side
    7,351.40x = 38,096,450.14
  5. Step 5: Solve for x
    x = 38,096,450.14/7,351.40
  6. Step 6: Final answer
    x = 5,182.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.