Home / 7,479.57-11,219.54-3,579.69

Finding the Fourth Proportional to 7,479.57, 11,219.54 and 3,579.69

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Solution

The fourth proportional to 7,479.57, 11,219.54 and 3,579.69 is: 5,369.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.57 : 11,219.54 = 3,579.69 : x
  2. Step 2: Convert to fraction form
    7,479.57/11,219.54 = 3,579.69/x
  3. Step 3: Cross multiply
    7,479.57x = 11,219.54 × 3,579.69
  4. Step 4: Simplify right side
    7,479.57x = 40,162,475.14
  5. Step 5: Solve for x
    x = 40,162,475.14/7,479.57
  6. Step 6: Final answer
    x = 5,369.62

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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.