Home / 7,380.75-10,185.48-4,068.75

Finding the Fourth Proportional to 7,380.75, 10,185.48 and 4,068.75

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Solution

The fourth proportional to 7,380.75, 10,185.48 and 4,068.75 is: 5,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.75 : 10,185.48 = 4,068.75 : x
  2. Step 2: Convert to fraction form
    7,380.75/10,185.48 = 4,068.75/x
  3. Step 3: Cross multiply
    7,380.75x = 10,185.48 × 4,068.75
  4. Step 4: Simplify right side
    7,380.75x = 41,442,171.75
  5. Step 5: Solve for x
    x = 41,442,171.75/7,380.75
  6. Step 6: Final answer
    x = 5,614.90

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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.