Home / 5,515.88-8,265.72-4,122.68

Finding the Fourth Proportional to 5,515.88, 8,265.72 and 4,122.68

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Solution

The fourth proportional to 5,515.88, 8,265.72 and 4,122.68 is: 6,177.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.88 : 8,265.72 = 4,122.68 : x
  2. Step 2: Convert to fraction form
    5,515.88/8,265.72 = 4,122.68/x
  3. Step 3: Cross multiply
    5,515.88x = 8,265.72 × 4,122.68
  4. Step 4: Simplify right side
    5,515.88x = 34,076,918.53
  5. Step 5: Solve for x
    x = 34,076,918.53/5,515.88
  6. Step 6: Final answer
    x = 6,177.97

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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.