Home / 3,787.56-5,226.12-2,215.08

Finding the Fourth Proportional to 3,787.56, 5,226.12 and 2,215.08

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Solution

The fourth proportional to 3,787.56, 5,226.12 and 2,215.08 is: 3,056.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.56 : 5,226.12 = 2,215.08 : x
  2. Step 2: Convert to fraction form
    3,787.56/5,226.12 = 2,215.08/x
  3. Step 3: Cross multiply
    3,787.56x = 5,226.12 × 2,215.08
  4. Step 4: Simplify right side
    3,787.56x = 11,576,273.89
  5. Step 5: Solve for x
    x = 11,576,273.89/3,787.56
  6. Step 6: Final answer
    x = 3,056.39

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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.