Home / 3,467.18-5,200.80-1,387.36

Finding the Fourth Proportional to 3,467.18, 5,200.80 and 1,387.36

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Solution

The fourth proportional to 3,467.18, 5,200.80 and 1,387.36 is: 2,081.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,467.18 : 5,200.80 = 1,387.36 : x
  2. Step 2: Convert to fraction form
    3,467.18/5,200.80 = 1,387.36/x
  3. Step 3: Cross multiply
    3,467.18x = 5,200.80 × 1,387.36
  4. Step 4: Simplify right side
    3,467.18x = 7,215,383.19
  5. Step 5: Solve for x
    x = 7,215,383.19/3,467.18
  6. Step 6: Final answer
    x = 2,081.05

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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.