Home / 3,736.89-5,605.13-1,139.63

Finding the Fourth Proportional to 3,736.89, 5,605.13 and 1,139.63

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Solution

The fourth proportional to 3,736.89, 5,605.13 and 1,139.63 is: 1,709.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,736.89 : 5,605.13 = 1,139.63 : x
  2. Step 2: Convert to fraction form
    3,736.89/5,605.13 = 1,139.63/x
  3. Step 3: Cross multiply
    3,736.89x = 5,605.13 × 1,139.63
  4. Step 4: Simplify right side
    3,736.89x = 6,387,740.58
  5. Step 5: Solve for x
    x = 6,387,740.58/3,736.89
  6. Step 6: Final answer
    x = 1,709.37

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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.