Home / 7,479.91-11,219.45-2,285.38

Finding the Fourth Proportional to 7,479.91, 11,219.45 and 2,285.38

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Solution

The fourth proportional to 7,479.91, 11,219.45 and 2,285.38 is: 3,427.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.91 : 11,219.45 = 2,285.38 : x
  2. Step 2: Convert to fraction form
    7,479.91/11,219.45 = 2,285.38/x
  3. Step 3: Cross multiply
    7,479.91x = 11,219.45 × 2,285.38
  4. Step 4: Simplify right side
    7,479.91x = 25,640,650.54
  5. Step 5: Solve for x
    x = 25,640,650.54/7,479.91
  6. Step 6: Final answer
    x = 3,427.94

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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.