Home / 3,755.61-5,633.80-1,290.11

Finding the Fourth Proportional to 3,755.61, 5,633.80 and 1,290.11

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Solution

The fourth proportional to 3,755.61, 5,633.80 and 1,290.11 is: 1,935.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.61 : 5,633.80 = 1,290.11 : x
  2. Step 2: Convert to fraction form
    3,755.61/5,633.80 = 1,290.11/x
  3. Step 3: Cross multiply
    3,755.61x = 5,633.80 × 1,290.11
  4. Step 4: Simplify right side
    3,755.61x = 7,268,190.32
  5. Step 5: Solve for x
    x = 7,268,190.32/3,755.61
  6. Step 6: Final answer
    x = 1,935.29

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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.