Home / 4,989.84-7,475.18-2,791.92

Finding the Fourth Proportional to 4,989.84, 7,475.18 and 2,791.92

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Solution

The fourth proportional to 4,989.84, 7,475.18 and 2,791.92 is: 4,182.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.84 : 7,475.18 = 2,791.92 : x
  2. Step 2: Convert to fraction form
    4,989.84/7,475.18 = 2,791.92/x
  3. Step 3: Cross multiply
    4,989.84x = 7,475.18 × 2,791.92
  4. Step 4: Simplify right side
    4,989.84x = 20,870,104.55
  5. Step 5: Solve for x
    x = 20,870,104.55/4,989.84
  6. Step 6: Final answer
    x = 4,182.52

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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.