Home / 3,611.80-5,393.59-3,427.28

Finding the Fourth Proportional to 3,611.80, 5,393.59 and 3,427.28

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Solution

The fourth proportional to 3,611.80, 5,393.59 and 3,427.28 is: 5,118.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.80 : 5,393.59 = 3,427.28 : x
  2. Step 2: Convert to fraction form
    3,611.80/5,393.59 = 3,427.28/x
  3. Step 3: Cross multiply
    3,611.80x = 5,393.59 × 3,427.28
  4. Step 4: Simplify right side
    3,611.80x = 18,485,343.14
  5. Step 5: Solve for x
    x = 18,485,343.14/3,611.80
  6. Step 6: Final answer
    x = 5,118.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.