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Finding the Fourth Proportional to 7,191.82, 10,787.01 and 2,261.33

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Solution

The fourth proportional to 7,191.82, 10,787.01 and 2,261.33 is: 3,391.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.82 : 10,787.01 = 2,261.33 : x
  2. Step 2: Convert to fraction form
    7,191.82/10,787.01 = 2,261.33/x
  3. Step 3: Cross multiply
    7,191.82x = 10,787.01 × 2,261.33
  4. Step 4: Simplify right side
    7,191.82x = 24,392,989.32
  5. Step 5: Solve for x
    x = 24,392,989.32/7,191.82
  6. Step 6: Final answer
    x = 3,391.77

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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.