Home / 3,561.36-5,339.88-1,372.08

Finding the Fourth Proportional to 3,561.36, 5,339.88 and 1,372.08

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Solution

The fourth proportional to 3,561.36, 5,339.88 and 1,372.08 is: 2,057.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.36 : 5,339.88 = 1,372.08 : x
  2. Step 2: Convert to fraction form
    3,561.36/5,339.88 = 1,372.08/x
  3. Step 3: Cross multiply
    3,561.36x = 5,339.88 × 1,372.08
  4. Step 4: Simplify right side
    3,561.36x = 7,326,742.55
  5. Step 5: Solve for x
    x = 7,326,742.55/3,561.36
  6. Step 6: Final answer
    x = 2,057.29

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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.