Home / 3,405.98-5,109.27-1,214.17

Finding the Fourth Proportional to 3,405.98, 5,109.27 and 1,214.17

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Solution

The fourth proportional to 3,405.98, 5,109.27 and 1,214.17 is: 1,821.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.98 : 5,109.27 = 1,214.17 : x
  2. Step 2: Convert to fraction form
    3,405.98/5,109.27 = 1,214.17/x
  3. Step 3: Cross multiply
    3,405.98x = 5,109.27 × 1,214.17
  4. Step 4: Simplify right side
    3,405.98x = 6,203,505.03
  5. Step 5: Solve for x
    x = 6,203,505.03/3,405.98
  6. Step 6: Final answer
    x = 1,821.36

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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.