Home / 3,930.60-5,895.90-1,333.56

Finding the Fourth Proportional to 3,930.60, 5,895.90 and 1,333.56

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Solution

The fourth proportional to 3,930.60, 5,895.90 and 1,333.56 is: 2,000.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.60 : 5,895.90 = 1,333.56 : x
  2. Step 2: Convert to fraction form
    3,930.60/5,895.90 = 1,333.56/x
  3. Step 3: Cross multiply
    3,930.60x = 5,895.90 × 1,333.56
  4. Step 4: Simplify right side
    3,930.60x = 7,862,536.40
  5. Step 5: Solve for x
    x = 7,862,536.40/3,930.60
  6. Step 6: Final answer
    x = 2,000.34

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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.