Home / 5,181.11-7,770.56-1,671.44

Finding the Fourth Proportional to 5,181.11, 7,770.56 and 1,671.44

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Solution

The fourth proportional to 5,181.11, 7,770.56 and 1,671.44 is: 2,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.11 : 7,770.56 = 1,671.44 : x
  2. Step 2: Convert to fraction form
    5,181.11/7,770.56 = 1,671.44/x
  3. Step 3: Cross multiply
    5,181.11x = 7,770.56 × 1,671.44
  4. Step 4: Simplify right side
    5,181.11x = 12,987,990.13
  5. Step 5: Solve for x
    x = 12,987,990.13/5,181.11
  6. Step 6: Final answer
    x = 2,506.80

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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.