Home / 1,405.13-2,104.50-1,200.11

Finding the Fourth Proportional to 1,405.13, 2,104.50 and 1,200.11

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Solution

The fourth proportional to 1,405.13, 2,104.50 and 1,200.11 is: 1,797.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.13 : 2,104.50 = 1,200.11 : x
  2. Step 2: Convert to fraction form
    1,405.13/2,104.50 = 1,200.11/x
  3. Step 3: Cross multiply
    1,405.13x = 2,104.50 × 1,200.11
  4. Step 4: Simplify right side
    1,405.13x = 2,525,620.97
  5. Step 5: Solve for x
    x = 2,525,620.97/1,405.13
  6. Step 6: Final answer
    x = 1,797.44

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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.