Home / 3,046.80-4,564.32-1,815.20

Finding the Fourth Proportional to 3,046.80, 4,564.32 and 1,815.20

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Solution

The fourth proportional to 3,046.80, 4,564.32 and 1,815.20 is: 2,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,046.80 : 4,564.32 = 1,815.20 : x
  2. Step 2: Convert to fraction form
    3,046.80/4,564.32 = 1,815.20/x
  3. Step 3: Cross multiply
    3,046.80x = 4,564.32 × 1,815.20
  4. Step 4: Simplify right side
    3,046.80x = 8,285,153.66
  5. Step 5: Solve for x
    x = 8,285,153.66/3,046.80
  6. Step 6: Final answer
    x = 2,719.30

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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.