Home / 5,515.95-8,266.94-2,587.80

Finding the Fourth Proportional to 5,515.95, 8,266.94 and 2,587.80

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Solution

The fourth proportional to 5,515.95, 8,266.94 and 2,587.80 is: 3,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.95 : 8,266.94 = 2,587.80 : x
  2. Step 2: Convert to fraction form
    5,515.95/8,266.94 = 2,587.80/x
  3. Step 3: Cross multiply
    5,515.95x = 8,266.94 × 2,587.80
  4. Step 4: Simplify right side
    5,515.95x = 21,393,187.33
  5. Step 5: Solve for x
    x = 21,393,187.33/5,515.95
  6. Step 6: Final answer
    x = 3,878.42

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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.