Home / 7,172.79-10,765.66-3,015.87

Finding the Fourth Proportional to 7,172.79, 10,765.66 and 3,015.87

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Solution

The fourth proportional to 7,172.79, 10,765.66 and 3,015.87 is: 4,526.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.79 : 10,765.66 = 3,015.87 : x
  2. Step 2: Convert to fraction form
    7,172.79/10,765.66 = 3,015.87/x
  3. Step 3: Cross multiply
    7,172.79x = 10,765.66 × 3,015.87
  4. Step 4: Simplify right side
    7,172.79x = 32,467,831.02
  5. Step 5: Solve for x
    x = 32,467,831.02/7,172.79
  6. Step 6: Final answer
    x = 4,526.53

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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.