Home / 3,611.27-5,415.69-1,761.20

Finding the Fourth Proportional to 3,611.27, 5,415.69 and 1,761.20

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Solution

The fourth proportional to 3,611.27, 5,415.69 and 1,761.20 is: 2,641.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.27 : 5,415.69 = 1,761.20 : x
  2. Step 2: Convert to fraction form
    3,611.27/5,415.69 = 1,761.20/x
  3. Step 3: Cross multiply
    3,611.27x = 5,415.69 × 1,761.20
  4. Step 4: Simplify right side
    3,611.27x = 9,538,113.23
  5. Step 5: Solve for x
    x = 9,538,113.23/3,611.27
  6. Step 6: Final answer
    x = 2,641.21

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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.