Home / 5,290.62-7,936.32-1,395

Finding the Fourth Proportional to 5,290.62, 7,936.32 and 1,395

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Solution

The fourth proportional to 5,290.62, 7,936.32 and 1,395 is: 2,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.62 : 7,936.32 = 1,395 : x
  2. Step 2: Convert to fraction form
    5,290.62/7,936.32 = 1,395/x
  3. Step 3: Cross multiply
    5,290.62x = 7,936.32 × 1,395
  4. Step 4: Simplify right side
    5,290.62x = 11,071,166.40
  5. Step 5: Solve for x
    x = 11,071,166.40/5,290.62
  6. Step 6: Final answer
    x = 2,092.60

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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.