Home / 3,657.14-5,485.15-1,191.95

Finding the Fourth Proportional to 3,657.14, 5,485.15 and 1,191.95

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Solution

The fourth proportional to 3,657.14, 5,485.15 and 1,191.95 is: 1,787.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.14 : 5,485.15 = 1,191.95 : x
  2. Step 2: Convert to fraction form
    3,657.14/5,485.15 = 1,191.95/x
  3. Step 3: Cross multiply
    3,657.14x = 5,485.15 × 1,191.95
  4. Step 4: Simplify right side
    3,657.14x = 6,538,024.54
  5. Step 5: Solve for x
    x = 6,538,024.54/3,657.14
  6. Step 6: Final answer
    x = 1,787.74

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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.