Home / 4,191.89-6,288.65-1,419.02

Finding the Fourth Proportional to 4,191.89, 6,288.65 and 1,419.02

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Solution

The fourth proportional to 4,191.89, 6,288.65 and 1,419.02 is: 2,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.89 : 6,288.65 = 1,419.02 : x
  2. Step 2: Convert to fraction form
    4,191.89/6,288.65 = 1,419.02/x
  3. Step 3: Cross multiply
    4,191.89x = 6,288.65 × 1,419.02
  4. Step 4: Simplify right side
    4,191.89x = 8,923,739.39
  5. Step 5: Solve for x
    x = 8,923,739.39/4,191.89
  6. Step 6: Final answer
    x = 2,128.81

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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.