Home / 5,228.48-7,839.21-2,889.61

Finding the Fourth Proportional to 5,228.48, 7,839.21 and 2,889.61

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Solution

The fourth proportional to 5,228.48, 7,839.21 and 2,889.61 is: 4,332.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.48 : 7,839.21 = 2,889.61 : x
  2. Step 2: Convert to fraction form
    5,228.48/7,839.21 = 2,889.61/x
  3. Step 3: Cross multiply
    5,228.48x = 7,839.21 × 2,889.61
  4. Step 4: Simplify right side
    5,228.48x = 22,652,250.85
  5. Step 5: Solve for x
    x = 22,652,250.85/5,228.48
  6. Step 6: Final answer
    x = 4,332.47

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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.