Home / 4,815.12-7,221.84-1,351.44

Finding the Fourth Proportional to 4,815.12, 7,221.84 and 1,351.44

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Solution

The fourth proportional to 4,815.12, 7,221.84 and 1,351.44 is: 2,026.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.12 : 7,221.84 = 1,351.44 : x
  2. Step 2: Convert to fraction form
    4,815.12/7,221.84 = 1,351.44/x
  3. Step 3: Cross multiply
    4,815.12x = 7,221.84 × 1,351.44
  4. Step 4: Simplify right side
    4,815.12x = 9,759,883.45
  5. Step 5: Solve for x
    x = 9,759,883.45/4,815.12
  6. Step 6: Final answer
    x = 2,026.92

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1.5x scale

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.