Home / 3,030.40-4,540.20-2,479.60

Finding the Fourth Proportional to 3,030.40, 4,540.20 and 2,479.60

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Solution

The fourth proportional to 3,030.40, 4,540.20 and 2,479.60 is: 3,714.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.40 : 4,540.20 = 2,479.60 : x
  2. Step 2: Convert to fraction form
    3,030.40/4,540.20 = 2,479.60/x
  3. Step 3: Cross multiply
    3,030.40x = 4,540.20 × 2,479.60
  4. Step 4: Simplify right side
    3,030.40x = 11,257,879.92
  5. Step 5: Solve for x
    x = 11,257,879.92/3,030.40
  6. Step 6: Final answer
    x = 3,714.98

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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.