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Finding the Fourth Proportional to 4,903.86, 7,355.01 and 2,129.79

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Solution

The fourth proportional to 4,903.86, 7,355.01 and 2,129.79 is: 3,194.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.86 : 7,355.01 = 2,129.79 : x
  2. Step 2: Convert to fraction form
    4,903.86/7,355.01 = 2,129.79/x
  3. Step 3: Cross multiply
    4,903.86x = 7,355.01 × 2,129.79
  4. Step 4: Simplify right side
    4,903.86x = 15,664,589.97
  5. Step 5: Solve for x
    x = 15,664,589.97/4,903.86
  6. Step 6: Final answer
    x = 3,194.34

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1.5x scale

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.