Home / 7,611.58-11,418.36-2,680.30

Finding the Fourth Proportional to 7,611.58, 11,418.36 and 2,680.30

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Solution

The fourth proportional to 7,611.58, 11,418.36 and 2,680.30 is: 4,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.58 : 11,418.36 = 2,680.30 : x
  2. Step 2: Convert to fraction form
    7,611.58/11,418.36 = 2,680.30/x
  3. Step 3: Cross multiply
    7,611.58x = 11,418.36 × 2,680.30
  4. Step 4: Simplify right side
    7,611.58x = 30,604,630.31
  5. Step 5: Solve for x
    x = 30,604,630.31/7,611.58
  6. Step 6: Final answer
    x = 4,020.80

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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.