Home / 2,744.28-4,117.23-989.28

Finding the Fourth Proportional to 2,744.28, 4,117.23 and 989.28

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Solution

The fourth proportional to 2,744.28, 4,117.23 and 989.28 is: 1,484.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,744.28 : 4,117.23 = 989.28 : x
  2. Step 2: Convert to fraction form
    2,744.28/4,117.23 = 989.28/x
  3. Step 3: Cross multiply
    2,744.28x = 4,117.23 × 989.28
  4. Step 4: Simplify right side
    2,744.28x = 4,073,093.29
  5. Step 5: Solve for x
    x = 4,073,093.29/2,744.28
  6. Step 6: Final answer
    x = 1,484.21

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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.