Home / 7,410.20-11,109.90-3,025.40

Finding the Fourth Proportional to 7,410.20, 11,109.90 and 3,025.40

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Solution

The fourth proportional to 7,410.20, 11,109.90 and 3,025.40 is: 4,535.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,410.20 : 11,109.90 = 3,025.40 : x
  2. Step 2: Convert to fraction form
    7,410.20/11,109.90 = 3,025.40/x
  3. Step 3: Cross multiply
    7,410.20x = 11,109.90 × 3,025.40
  4. Step 4: Simplify right side
    7,410.20x = 33,611,891.46
  5. Step 5: Solve for x
    x = 33,611,891.46/7,410.20
  6. Step 6: Final answer
    x = 4,535.90

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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.