Home / 7,241.20-10,868.32-3,780.88

Finding the Fourth Proportional to 7,241.20, 10,868.32 and 3,780.88

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Solution

The fourth proportional to 7,241.20, 10,868.32 and 3,780.88 is: 5,674.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,241.20 : 10,868.32 = 3,780.88 : x
  2. Step 2: Convert to fraction form
    7,241.20/10,868.32 = 3,780.88/x
  3. Step 3: Cross multiply
    7,241.20x = 10,868.32 × 3,780.88
  4. Step 4: Simplify right side
    7,241.20x = 41,091,813.72
  5. Step 5: Solve for x
    x = 41,091,813.72/7,241.20
  6. Step 6: Final answer
    x = 5,674.72

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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.