Home / 4,863.90-7,289.76-2,087.36

Finding the Fourth Proportional to 4,863.90, 7,289.76 and 2,087.36

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Solution

The fourth proportional to 4,863.90, 7,289.76 and 2,087.36 is: 3,128.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,863.90 : 7,289.76 = 2,087.36 : x
  2. Step 2: Convert to fraction form
    4,863.90/7,289.76 = 2,087.36/x
  3. Step 3: Cross multiply
    4,863.90x = 7,289.76 × 2,087.36
  4. Step 4: Simplify right side
    4,863.90x = 15,216,316.98
  5. Step 5: Solve for x
    x = 15,216,316.98/4,863.90
  6. Step 6: Final answer
    x = 3,128.42

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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.