Home / 5,087.00-7,630.50-1,389.23

Finding the Fourth Proportional to 5,087.00, 7,630.50 and 1,389.23

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Solution

The fourth proportional to 5,087.00, 7,630.50 and 1,389.23 is: 2,083.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.00 : 7,630.50 = 1,389.23 : x
  2. Step 2: Convert to fraction form
    5,087.00/7,630.50 = 1,389.23/x
  3. Step 3: Cross multiply
    5,087.00x = 7,630.50 × 1,389.23
  4. Step 4: Simplify right side
    5,087.00x = 10,600,481.36
  5. Step 5: Solve for x
    x = 10,600,481.36/5,087.00
  6. Step 6: Final answer
    x = 2,083.84

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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.