Home / 3,655.88-5,485.41-1,191.47

Finding the Fourth Proportional to 3,655.88, 5,485.41 and 1,191.47

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Solution

The fourth proportional to 3,655.88, 5,485.41 and 1,191.47 is: 1,787.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.88 : 5,485.41 = 1,191.47 : x
  2. Step 2: Convert to fraction form
    3,655.88/5,485.41 = 1,191.47/x
  3. Step 3: Cross multiply
    3,655.88x = 5,485.41 × 1,191.47
  4. Step 4: Simplify right side
    3,655.88x = 6,535,701.45
  5. Step 5: Solve for x
    x = 6,535,701.45/3,655.88
  6. Step 6: Final answer
    x = 1,787.72

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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.