Home / 5,123.76-7,688.52-2,201.84

Finding the Fourth Proportional to 5,123.76, 7,688.52 and 2,201.84

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Solution

The fourth proportional to 5,123.76, 7,688.52 and 2,201.84 is: 3,304.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.76 : 7,688.52 = 2,201.84 : x
  2. Step 2: Convert to fraction form
    5,123.76/7,688.52 = 2,201.84/x
  3. Step 3: Cross multiply
    5,123.76x = 7,688.52 × 2,201.84
  4. Step 4: Simplify right side
    5,123.76x = 16,928,890.88
  5. Step 5: Solve for x
    x = 16,928,890.88/5,123.76
  6. Step 6: Final answer
    x = 3,304.00

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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.