Home / 5,112-7,669.80-2,516.76

Finding the Fourth Proportional to 5,112, 7,669.80 and 2,516.76

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Solution

The fourth proportional to 5,112, 7,669.80 and 2,516.76 is: 3,776.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112 : 7,669.80 = 2,516.76 : x
  2. Step 2: Convert to fraction form
    5,112/7,669.80 = 2,516.76/x
  3. Step 3: Cross multiply
    5,112x = 7,669.80 × 2,516.76
  4. Step 4: Simplify right side
    5,112x = 19,303,045.85
  5. Step 5: Solve for x
    x = 19,303,045.85/5,112
  6. Step 6: Final answer
    x = 3,776.03

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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.