Home / 3,656.89-5,485.92-1,191.52

Finding the Fourth Proportional to 3,656.89, 5,485.92 and 1,191.52

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Solution

The fourth proportional to 3,656.89, 5,485.92 and 1,191.52 is: 1,787.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.89 : 5,485.92 = 1,191.52 : x
  2. Step 2: Convert to fraction form
    3,656.89/5,485.92 = 1,191.52/x
  3. Step 3: Cross multiply
    3,656.89x = 5,485.92 × 1,191.52
  4. Step 4: Simplify right side
    3,656.89x = 6,536,583.40
  5. Step 5: Solve for x
    x = 6,536,583.40/3,656.89
  6. Step 6: Final answer
    x = 1,787.47

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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.