Home / 4,388.62-6,579.21-1,921.57

Finding the Fourth Proportional to 4,388.62, 6,579.21 and 1,921.57

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Solution

The fourth proportional to 4,388.62, 6,579.21 and 1,921.57 is: 2,880.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,388.62 : 6,579.21 = 1,921.57 : x
  2. Step 2: Convert to fraction form
    4,388.62/6,579.21 = 1,921.57/x
  3. Step 3: Cross multiply
    4,388.62x = 6,579.21 × 1,921.57
  4. Step 4: Simplify right side
    4,388.62x = 12,642,412.56
  5. Step 5: Solve for x
    x = 12,642,412.56/4,388.62
  6. Step 6: Final answer
    x = 2,880.73

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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.