Home / 4,086.45-6,126.03-1,620

Finding the Fourth Proportional to 4,086.45, 6,126.03 and 1,620

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Solution

The fourth proportional to 4,086.45, 6,126.03 and 1,620 is: 2,428.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.45 : 6,126.03 = 1,620 : x
  2. Step 2: Convert to fraction form
    4,086.45/6,126.03 = 1,620/x
  3. Step 3: Cross multiply
    4,086.45x = 6,126.03 × 1,620
  4. Step 4: Simplify right side
    4,086.45x = 9,924,168.60
  5. Step 5: Solve for x
    x = 9,924,168.60/4,086.45
  6. Step 6: Final answer
    x = 2,428.56

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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.