Home / 4,747.58-7,121.35-1,284.83

Finding the Fourth Proportional to 4,747.58, 7,121.35 and 1,284.83

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Solution

The fourth proportional to 4,747.58, 7,121.35 and 1,284.83 is: 1,927.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.58 : 7,121.35 = 1,284.83 : x
  2. Step 2: Convert to fraction form
    4,747.58/7,121.35 = 1,284.83/x
  3. Step 3: Cross multiply
    4,747.58x = 7,121.35 × 1,284.83
  4. Step 4: Simplify right side
    4,747.58x = 9,149,716.82
  5. Step 5: Solve for x
    x = 9,149,716.82/4,747.58
  6. Step 6: Final answer
    x = 1,927.24

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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.