Home / 5,889.21-8,120.76-4,209.98

Finding the Fourth Proportional to 5,889.21, 8,120.76 and 4,209.98

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Solution

The fourth proportional to 5,889.21, 8,120.76 and 4,209.98 is: 5,805.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,889.21 : 8,120.76 = 4,209.98 : x
  2. Step 2: Convert to fraction form
    5,889.21/8,120.76 = 4,209.98/x
  3. Step 3: Cross multiply
    5,889.21x = 8,120.76 × 4,209.98
  4. Step 4: Simplify right side
    5,889.21x = 34,188,180.79
  5. Step 5: Solve for x
    x = 34,188,180.79/5,889.21
  6. Step 6: Final answer
    x = 5,805.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.