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Finding the Fourth Proportional to 3,889.88, 5,834.82 and 1,579.76

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Solution

The fourth proportional to 3,889.88, 5,834.82 and 1,579.76 is: 2,369.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.88 : 5,834.82 = 1,579.76 : x
  2. Step 2: Convert to fraction form
    3,889.88/5,834.82 = 1,579.76/x
  3. Step 3: Cross multiply
    3,889.88x = 5,834.82 × 1,579.76
  4. Step 4: Simplify right side
    3,889.88x = 9,217,615.24
  5. Step 5: Solve for x
    x = 9,217,615.24/3,889.88
  6. Step 6: Final answer
    x = 2,369.64

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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.