Home / 2,980.20-4,475.10-2,250.60

Finding the Fourth Proportional to 2,980.20, 4,475.10 and 2,250.60

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Solution

The fourth proportional to 2,980.20, 4,475.10 and 2,250.60 is: 3,379.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.20 : 4,475.10 = 2,250.60 : x
  2. Step 2: Convert to fraction form
    2,980.20/4,475.10 = 2,250.60/x
  3. Step 3: Cross multiply
    2,980.20x = 4,475.10 × 2,250.60
  4. Step 4: Simplify right side
    2,980.20x = 10,071,660.06
  5. Step 5: Solve for x
    x = 10,071,660.06/2,980.20
  6. Step 6: Final answer
    x = 3,379.52

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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.