Home / 7,162.28-10,742.63-2,231.51

Finding the Fourth Proportional to 7,162.28, 10,742.63 and 2,231.51

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Solution

The fourth proportional to 7,162.28, 10,742.63 and 2,231.51 is: 3,347.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.28 : 10,742.63 = 2,231.51 : x
  2. Step 2: Convert to fraction form
    7,162.28/10,742.63 = 2,231.51/x
  3. Step 3: Cross multiply
    7,162.28x = 10,742.63 × 2,231.51
  4. Step 4: Simplify right side
    7,162.28x = 23,972,221.40
  5. Step 5: Solve for x
    x = 23,972,221.40/7,162.28
  6. Step 6: Final answer
    x = 3,347.01

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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.