Home / 7,483.05-11,231.51-3,787.88

Finding the Fourth Proportional to 7,483.05, 11,231.51 and 3,787.88

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Solution

The fourth proportional to 7,483.05, 11,231.51 and 3,787.88 is: 5,685.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,483.05 : 11,231.51 = 3,787.88 : x
  2. Step 2: Convert to fraction form
    7,483.05/11,231.51 = 3,787.88/x
  3. Step 3: Cross multiply
    7,483.05x = 11,231.51 × 3,787.88
  4. Step 4: Simplify right side
    7,483.05x = 42,543,579.12
  5. Step 5: Solve for x
    x = 42,543,579.12/7,483.05
  6. Step 6: Final answer
    x = 5,685.32

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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.