Home / 4,822.20-7,228.80-1,898.28

Finding the Fourth Proportional to 4,822.20, 7,228.80 and 1,898.28

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Solution

The fourth proportional to 4,822.20, 7,228.80 and 1,898.28 is: 2,845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,822.20 : 7,228.80 = 1,898.28 : x
  2. Step 2: Convert to fraction form
    4,822.20/7,228.80 = 1,898.28/x
  3. Step 3: Cross multiply
    4,822.20x = 7,228.80 × 1,898.28
  4. Step 4: Simplify right side
    4,822.20x = 13,722,286.46
  5. Step 5: Solve for x
    x = 13,722,286.46/4,822.20
  6. Step 6: Final answer
    x = 2,845.65

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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.