Home / 3,611.24-5,416.86-1,272.98

Finding the Fourth Proportional to 3,611.24, 5,416.86 and 1,272.98

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Solution

The fourth proportional to 3,611.24, 5,416.86 and 1,272.98 is: 1,909.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.24 : 5,416.86 = 1,272.98 : x
  2. Step 2: Convert to fraction form
    3,611.24/5,416.86 = 1,272.98/x
  3. Step 3: Cross multiply
    3,611.24x = 5,416.86 × 1,272.98
  4. Step 4: Simplify right side
    3,611.24x = 6,895,554.44
  5. Step 5: Solve for x
    x = 6,895,554.44/3,611.24
  6. Step 6: Final answer
    x = 1,909.47

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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.