Home / 5,089.62-7,634.44-1,391.57

Finding the Fourth Proportional to 5,089.62, 7,634.44 and 1,391.57

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Solution

The fourth proportional to 5,089.62, 7,634.44 and 1,391.57 is: 2,087.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.62 : 7,634.44 = 1,391.57 : x
  2. Step 2: Convert to fraction form
    5,089.62/7,634.44 = 1,391.57/x
  3. Step 3: Cross multiply
    5,089.62x = 7,634.44 × 1,391.57
  4. Step 4: Simplify right side
    5,089.62x = 10,623,863.51
  5. Step 5: Solve for x
    x = 10,623,863.51/5,089.62
  6. Step 6: Final answer
    x = 2,087.36

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1.5x scale

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.