Home / 3,184.80-4,782.87-2,815.44

Finding the Fourth Proportional to 3,184.80, 4,782.87 and 2,815.44

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Solution

The fourth proportional to 3,184.80, 4,782.87 and 2,815.44 is: 4,228.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,184.80 : 4,782.87 = 2,815.44 : x
  2. Step 2: Convert to fraction form
    3,184.80/4,782.87 = 2,815.44/x
  3. Step 3: Cross multiply
    3,184.80x = 4,782.87 × 2,815.44
  4. Step 4: Simplify right side
    3,184.80x = 13,465,883.51
  5. Step 5: Solve for x
    x = 13,465,883.51/3,184.80
  6. Step 6: Final answer
    x = 4,228.17

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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.