Home / 7,611.62-11,415.56-2,613.42

Finding the Fourth Proportional to 7,611.62, 11,415.56 and 2,613.42

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Solution

The fourth proportional to 7,611.62, 11,415.56 and 2,613.42 is: 3,919.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.62 : 11,415.56 = 2,613.42 : x
  2. Step 2: Convert to fraction form
    7,611.62/11,415.56 = 2,613.42/x
  3. Step 3: Cross multiply
    7,611.62x = 11,415.56 × 2,613.42
  4. Step 4: Simplify right side
    7,611.62x = 29,833,639.75
  5. Step 5: Solve for x
    x = 29,833,639.75/7,611.62
  6. Step 6: Final answer
    x = 3,919.49

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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.