Home / 7,131.76-10,688.73-3,433.01

Finding the Fourth Proportional to 7,131.76, 10,688.73 and 3,433.01

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Solution

The fourth proportional to 7,131.76, 10,688.73 and 3,433.01 is: 5,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.76 : 10,688.73 = 3,433.01 : x
  2. Step 2: Convert to fraction form
    7,131.76/10,688.73 = 3,433.01/x
  3. Step 3: Cross multiply
    7,131.76x = 10,688.73 × 3,433.01
  4. Step 4: Simplify right side
    7,131.76x = 36,694,450.66
  5. Step 5: Solve for x
    x = 36,694,450.66/7,131.76
  6. Step 6: Final answer
    x = 5,145.22

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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.