Home / 7,715.78-11,564.90-3,034.92

Finding the Fourth Proportional to 7,715.78, 11,564.90 and 3,034.92

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Solution

The fourth proportional to 7,715.78, 11,564.90 and 3,034.92 is: 4,548.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.78 : 11,564.90 = 3,034.92 : x
  2. Step 2: Convert to fraction form
    7,715.78/11,564.90 = 3,034.92/x
  3. Step 3: Cross multiply
    7,715.78x = 11,564.90 × 3,034.92
  4. Step 4: Simplify right side
    7,715.78x = 35,098,529.37
  5. Step 5: Solve for x
    x = 35,098,529.37/7,715.78
  6. Step 6: Final answer
    x = 4,548.93

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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.