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Finding the Fourth Proportional to 6,771.99, 9,345.39 and 3,787.95

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Solution

The fourth proportional to 6,771.99, 9,345.39 and 3,787.95 is: 5,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,771.99 : 9,345.39 = 3,787.95 : x
  2. Step 2: Convert to fraction form
    6,771.99/9,345.39 = 3,787.95/x
  3. Step 3: Cross multiply
    6,771.99x = 9,345.39 × 3,787.95
  4. Step 4: Simplify right side
    6,771.99x = 35,399,870.05
  5. Step 5: Solve for x
    x = 35,399,870.05/6,771.99
  6. Step 6: Final answer
    x = 5,227.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.