Home / 7,240.11-10,878.35-4,608.78

Finding the Fourth Proportional to 7,240.11, 10,878.35 and 4,608.78

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Solution

The fourth proportional to 7,240.11, 10,878.35 and 4,608.78 is: 6,924.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.11 : 10,878.35 = 4,608.78 : x
  2. Step 2: Convert to fraction form
    7,240.11/10,878.35 = 4,608.78/x
  3. Step 3: Cross multiply
    7,240.11x = 10,878.35 × 4,608.78
  4. Step 4: Simplify right side
    7,240.11x = 50,135,933.43
  5. Step 5: Solve for x
    x = 50,135,933.43/7,240.11
  6. Step 6: Final answer
    x = 6,924.75

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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.