Home / 4,927.42-7,390.72-2,153.31

Finding the Fourth Proportional to 4,927.42, 7,390.72 and 2,153.31

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Solution

The fourth proportional to 4,927.42, 7,390.72 and 2,153.31 is: 3,229.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,927.42 : 7,390.72 = 2,153.31 : x
  2. Step 2: Convert to fraction form
    4,927.42/7,390.72 = 2,153.31/x
  3. Step 3: Cross multiply
    4,927.42x = 7,390.72 × 2,153.31
  4. Step 4: Simplify right side
    4,927.42x = 15,914,511.28
  5. Step 5: Solve for x
    x = 15,914,511.28/4,927.42
  6. Step 6: Final answer
    x = 3,229.79

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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.