Home / 5,438.61-8,160.54-2,663.76

Finding the Fourth Proportional to 5,438.61, 8,160.54 and 2,663.76

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Solution

The fourth proportional to 5,438.61, 8,160.54 and 2,663.76 is: 3,996.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.61 : 8,160.54 = 2,663.76 : x
  2. Step 2: Convert to fraction form
    5,438.61/8,160.54 = 2,663.76/x
  3. Step 3: Cross multiply
    5,438.61x = 8,160.54 × 2,663.76
  4. Step 4: Simplify right side
    5,438.61x = 21,737,720.03
  5. Step 5: Solve for x
    x = 21,737,720.03/5,438.61
  6. Step 6: Final answer
    x = 3,996.93

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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.