Home / 3,046.40-4,558.80-2,117.60

Finding the Fourth Proportional to 3,046.40, 4,558.80 and 2,117.60

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Solution

The fourth proportional to 3,046.40, 4,558.80 and 2,117.60 is: 3,168.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,046.40 : 4,558.80 = 2,117.60 : x
  2. Step 2: Convert to fraction form
    3,046.40/4,558.80 = 2,117.60/x
  3. Step 3: Cross multiply
    3,046.40x = 4,558.80 × 2,117.60
  4. Step 4: Simplify right side
    3,046.40x = 9,653,714.88
  5. Step 5: Solve for x
    x = 9,653,714.88/3,046.40
  6. Step 6: Final answer
    x = 3,168.89

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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.