Home / 3,467.12-5,200.70-1,387.30

Finding the Fourth Proportional to 3,467.12, 5,200.70 and 1,387.30

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Solution

The fourth proportional to 3,467.12, 5,200.70 and 1,387.30 is: 2,080.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,467.12 : 5,200.70 = 1,387.30 : x
  2. Step 2: Convert to fraction form
    3,467.12/5,200.70 = 1,387.30/x
  3. Step 3: Cross multiply
    3,467.12x = 5,200.70 × 1,387.30
  4. Step 4: Simplify right side
    3,467.12x = 7,214,931.11
  5. Step 5: Solve for x
    x = 7,214,931.11/3,467.12
  6. Step 6: Final answer
    x = 2,080.96

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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.