Home / 4,940.52-7,410.78-2,020.20

Finding the Fourth Proportional to 4,940.52, 7,410.78 and 2,020.20

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Solution

The fourth proportional to 4,940.52, 7,410.78 and 2,020.20 is: 3,030.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.52 : 7,410.78 = 2,020.20 : x
  2. Step 2: Convert to fraction form
    4,940.52/7,410.78 = 2,020.20/x
  3. Step 3: Cross multiply
    4,940.52x = 7,410.78 × 2,020.20
  4. Step 4: Simplify right side
    4,940.52x = 14,971,257.76
  5. Step 5: Solve for x
    x = 14,971,257.76/4,940.52
  6. Step 6: Final answer
    x = 3,030.30

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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.