Home / 3,015.80-4,520.69-1,455.36

Finding the Fourth Proportional to 3,015.80, 4,520.69 and 1,455.36

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Solution

The fourth proportional to 3,015.80, 4,520.69 and 1,455.36 is: 2,181.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.80 : 4,520.69 = 1,455.36 : x
  2. Step 2: Convert to fraction form
    3,015.80/4,520.69 = 1,455.36/x
  3. Step 3: Cross multiply
    3,015.80x = 4,520.69 × 1,455.36
  4. Step 4: Simplify right side
    3,015.80x = 6,579,231.40
  5. Step 5: Solve for x
    x = 6,579,231.40/3,015.80
  6. Step 6: Final answer
    x = 2,181.59

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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.