Home / 3,330.61-4,996.70-1,139.38

Finding the Fourth Proportional to 3,330.61, 4,996.70 and 1,139.38

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Solution

The fourth proportional to 3,330.61, 4,996.70 and 1,139.38 is: 1,709.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.61 : 4,996.70 = 1,139.38 : x
  2. Step 2: Convert to fraction form
    3,330.61/4,996.70 = 1,139.38/x
  3. Step 3: Cross multiply
    3,330.61x = 4,996.70 × 1,139.38
  4. Step 4: Simplify right side
    3,330.61x = 5,693,140.05
  5. Step 5: Solve for x
    x = 5,693,140.05/3,330.61
  6. Step 6: Final answer
    x = 1,709.34

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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.