Home / 4,189.20-6,281.50-2,708.20

Finding the Fourth Proportional to 4,189.20, 6,281.50 and 2,708.20

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Solution

The fourth proportional to 4,189.20, 6,281.50 and 2,708.20 is: 4,060.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.20 : 6,281.50 = 2,708.20 : x
  2. Step 2: Convert to fraction form
    4,189.20/6,281.50 = 2,708.20/x
  3. Step 3: Cross multiply
    4,189.20x = 6,281.50 × 2,708.20
  4. Step 4: Simplify right side
    4,189.20x = 17,011,558.30
  5. Step 5: Solve for x
    x = 17,011,558.30/4,189.20
  6. Step 6: Final answer
    x = 4,060.81

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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.