Home / 5,181.98-7,758.59-4,268.50

Finding the Fourth Proportional to 5,181.98, 7,758.59 and 4,268.50

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Solution

The fourth proportional to 5,181.98, 7,758.59 and 4,268.50 is: 6,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.98 : 7,758.59 = 4,268.50 : x
  2. Step 2: Convert to fraction form
    5,181.98/7,758.59 = 4,268.50/x
  3. Step 3: Cross multiply
    5,181.98x = 7,758.59 × 4,268.50
  4. Step 4: Simplify right side
    5,181.98x = 33,117,500.68
  5. Step 5: Solve for x
    x = 33,117,500.68/5,181.98
  6. Step 6: Final answer
    x = 6,390.90

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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.