Home / 4,747.44-7,121.18-1,284.69

Finding the Fourth Proportional to 4,747.44, 7,121.18 and 1,284.69

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Solution

The fourth proportional to 4,747.44, 7,121.18 and 1,284.69 is: 1,927.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.44 : 7,121.18 = 1,284.69 : x
  2. Step 2: Convert to fraction form
    4,747.44/7,121.18 = 1,284.69/x
  3. Step 3: Cross multiply
    4,747.44x = 7,121.18 × 1,284.69
  4. Step 4: Simplify right side
    4,747.44x = 9,148,508.73
  5. Step 5: Solve for x
    x = 9,148,508.73/4,747.44
  6. Step 6: Final answer
    x = 1,927.04

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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.