Home / 5,147.84-7,721.70-1,252.25

Finding the Fourth Proportional to 5,147.84, 7,721.70 and 1,252.25

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Solution

The fourth proportional to 5,147.84, 7,721.70 and 1,252.25 is: 1,878.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.84 : 7,721.70 = 1,252.25 : x
  2. Step 2: Convert to fraction form
    5,147.84/7,721.70 = 1,252.25/x
  3. Step 3: Cross multiply
    5,147.84x = 7,721.70 × 1,252.25
  4. Step 4: Simplify right side
    5,147.84x = 9,669,498.83
  5. Step 5: Solve for x
    x = 9,669,498.83/5,147.84
  6. Step 6: Final answer
    x = 1,878.36

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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.