Home / 3,743.40-5,166.52-2,172.80

Finding the Fourth Proportional to 3,743.40, 5,166.52 and 2,172.80

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Solution

The fourth proportional to 3,743.40, 5,166.52 and 2,172.80 is: 2,998.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,743.40 : 5,166.52 = 2,172.80 : x
  2. Step 2: Convert to fraction form
    3,743.40/5,166.52 = 2,172.80/x
  3. Step 3: Cross multiply
    3,743.40x = 5,166.52 × 2,172.80
  4. Step 4: Simplify right side
    3,743.40x = 11,225,814.66
  5. Step 5: Solve for x
    x = 11,225,814.66/3,743.40
  6. Step 6: Final answer
    x = 2,998.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.