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Finding the Fourth Proportional to 5,778.26, 8,665.80 and 2,079.80

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Solution

The fourth proportional to 5,778.26, 8,665.80 and 2,079.80 is: 3,119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.26 : 8,665.80 = 2,079.80 : x
  2. Step 2: Convert to fraction form
    5,778.26/8,665.80 = 2,079.80/x
  3. Step 3: Cross multiply
    5,778.26x = 8,665.80 × 2,079.80
  4. Step 4: Simplify right side
    5,778.26x = 18,023,130.84
  5. Step 5: Solve for x
    x = 18,023,130.84/5,778.26
  6. Step 6: Final answer
    x = 3,119.13

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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.