Home / 3,511.40-5,263.46-1,661.11

Finding the Fourth Proportional to 3,511.40, 5,263.46 and 1,661.11

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Solution

The fourth proportional to 3,511.40, 5,263.46 and 1,661.11 is: 2,489.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.40 : 5,263.46 = 1,661.11 : x
  2. Step 2: Convert to fraction form
    3,511.40/5,263.46 = 1,661.11/x
  3. Step 3: Cross multiply
    3,511.40x = 5,263.46 × 1,661.11
  4. Step 4: Simplify right side
    3,511.40x = 8,743,166.13
  5. Step 5: Solve for x
    x = 8,743,166.13/3,511.40
  6. Step 6: Final answer
    x = 2,489.94

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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.