Home / 3,787.48-5,638.55-3,769.12

Finding the Fourth Proportional to 3,787.48, 5,638.55 and 3,769.12

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Solution

The fourth proportional to 3,787.48, 5,638.55 and 3,769.12 is: 5,611.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.48 : 5,638.55 = 3,769.12 : x
  2. Step 2: Convert to fraction form
    3,787.48/5,638.55 = 3,769.12/x
  3. Step 3: Cross multiply
    3,787.48x = 5,638.55 × 3,769.12
  4. Step 4: Simplify right side
    3,787.48x = 21,252,371.58
  5. Step 5: Solve for x
    x = 21,252,371.58/3,787.48
  6. Step 6: Final answer
    x = 5,611.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.