Home / 3,260.30-4,879.47-2,990.54

Finding the Fourth Proportional to 3,260.30, 4,879.47 and 2,990.54

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Solution

The fourth proportional to 3,260.30, 4,879.47 and 2,990.54 is: 4,475.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.30 : 4,879.47 = 2,990.54 : x
  2. Step 2: Convert to fraction form
    3,260.30/4,879.47 = 2,990.54/x
  3. Step 3: Cross multiply
    3,260.30x = 4,879.47 × 2,990.54
  4. Step 4: Simplify right side
    3,260.30x = 14,592,250.21
  5. Step 5: Solve for x
    x = 14,592,250.21/3,260.30
  6. Step 6: Final answer
    x = 4,475.74

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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.