Home / 6,611.08-9,119.82-3,957.70

Finding the Fourth Proportional to 6,611.08, 9,119.82 and 3,957.70

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Solution

The fourth proportional to 6,611.08, 9,119.82 and 3,957.70 is: 5,459.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.08 : 9,119.82 = 3,957.70 : x
  2. Step 2: Convert to fraction form
    6,611.08/9,119.82 = 3,957.70/x
  3. Step 3: Cross multiply
    6,611.08x = 9,119.82 × 3,957.70
  4. Step 4: Simplify right side
    6,611.08x = 36,093,511.61
  5. Step 5: Solve for x
    x = 36,093,511.61/6,611.08
  6. Step 6: Final answer
    x = 5,459.55

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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.