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Finding the Fourth Proportional to 5,919.91, 8,871.39 and 4,347.56

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Solution

The fourth proportional to 5,919.91, 8,871.39 and 4,347.56 is: 6,515.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.91 : 8,871.39 = 4,347.56 : x
  2. Step 2: Convert to fraction form
    5,919.91/8,871.39 = 4,347.56/x
  3. Step 3: Cross multiply
    5,919.91x = 8,871.39 × 4,347.56
  4. Step 4: Simplify right side
    5,919.91x = 38,568,922.49
  5. Step 5: Solve for x
    x = 38,568,922.49/5,919.91
  6. Step 6: Final answer
    x = 6,515.12

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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.