Home / 5,101.50-7,644.95-2,905.69

Finding the Fourth Proportional to 5,101.50, 7,644.95 and 2,905.69

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Solution

The fourth proportional to 5,101.50, 7,644.95 and 2,905.69 is: 4,354.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.50 : 7,644.95 = 2,905.69 : x
  2. Step 2: Convert to fraction form
    5,101.50/7,644.95 = 2,905.69/x
  3. Step 3: Cross multiply
    5,101.50x = 7,644.95 × 2,905.69
  4. Step 4: Simplify right side
    5,101.50x = 22,213,854.77
  5. Step 5: Solve for x
    x = 22,213,854.77/5,101.50
  6. Step 6: Final answer
    x = 4,354.38

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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.