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Finding the Fourth Proportional to 7,212.58, 10,817.63 and 2,017.22

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Solution

The fourth proportional to 7,212.58, 10,817.63 and 2,017.22 is: 3,025.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.58 : 10,817.63 = 2,017.22 : x
  2. Step 2: Convert to fraction form
    7,212.58/10,817.63 = 2,017.22/x
  3. Step 3: Cross multiply
    7,212.58x = 10,817.63 × 2,017.22
  4. Step 4: Simplify right side
    7,212.58x = 21,821,539.59
  5. Step 5: Solve for x
    x = 21,821,539.59/7,212.58
  6. Step 6: Final answer
    x = 3,025.48

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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.