Home / 3,789.68-5,685.06-1,191.74

Finding the Fourth Proportional to 3,789.68, 5,685.06 and 1,191.74

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Solution

The fourth proportional to 3,789.68, 5,685.06 and 1,191.74 is: 1,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.68 : 5,685.06 = 1,191.74 : x
  2. Step 2: Convert to fraction form
    3,789.68/5,685.06 = 1,191.74/x
  3. Step 3: Cross multiply
    3,789.68x = 5,685.06 × 1,191.74
  4. Step 4: Simplify right side
    3,789.68x = 6,775,113.40
  5. Step 5: Solve for x
    x = 6,775,113.40/3,789.68
  6. Step 6: Final answer
    x = 1,787.78

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1.5x scale

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.