Home / 7,406.20-11,100.30-3,021.40

Finding the Fourth Proportional to 7,406.20, 11,100.30 and 3,021.40

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Solution

The fourth proportional to 7,406.20, 11,100.30 and 3,021.40 is: 4,528.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,406.20 : 11,100.30 = 3,021.40 : x
  2. Step 2: Convert to fraction form
    7,406.20/11,100.30 = 3,021.40/x
  3. Step 3: Cross multiply
    7,406.20x = 11,100.30 × 3,021.40
  4. Step 4: Simplify right side
    7,406.20x = 33,538,446.42
  5. Step 5: Solve for x
    x = 33,538,446.42/7,406.20
  6. Step 6: Final answer
    x = 4,528.43

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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.