Home / 4,325.60-6,489.30-2,131.76

Finding the Fourth Proportional to 4,325.60, 6,489.30 and 2,131.76

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Solution

The fourth proportional to 4,325.60, 6,489.30 and 2,131.76 is: 3,198.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,325.60 : 6,489.30 = 2,131.76 : x
  2. Step 2: Convert to fraction form
    4,325.60/6,489.30 = 2,131.76/x
  3. Step 3: Cross multiply
    4,325.60x = 6,489.30 × 2,131.76
  4. Step 4: Simplify right side
    4,325.60x = 13,833,630.17
  5. Step 5: Solve for x
    x = 13,833,630.17/4,325.60
  6. Step 6: Final answer
    x = 3,198.08

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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.