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Finding the Fourth Proportional to 5,511.58, 7,605.90 and 2,993.80

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Solution

The fourth proportional to 5,511.58, 7,605.90 and 2,993.80 is: 4,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511.58 : 7,605.90 = 2,993.80 : x
  2. Step 2: Convert to fraction form
    5,511.58/7,605.90 = 2,993.80/x
  3. Step 3: Cross multiply
    5,511.58x = 7,605.90 × 2,993.80
  4. Step 4: Simplify right side
    5,511.58x = 22,770,543.42
  5. Step 5: Solve for x
    x = 22,770,543.42/5,511.58
  6. Step 6: Final answer
    x = 4,131.40

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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.