Home / 5,148.31-7,721.88-1,450.84

Finding the Fourth Proportional to 5,148.31, 7,721.88 and 1,450.84

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Solution

The fourth proportional to 5,148.31, 7,721.88 and 1,450.84 is: 2,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.31 : 7,721.88 = 1,450.84 : x
  2. Step 2: Convert to fraction form
    5,148.31/7,721.88 = 1,450.84/x
  3. Step 3: Cross multiply
    5,148.31x = 7,721.88 × 1,450.84
  4. Step 4: Simplify right side
    5,148.31x = 11,203,212.38
  5. Step 5: Solve for x
    x = 11,203,212.38/5,148.31
  6. Step 6: Final answer
    x = 2,176.10

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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.