Home / 7,922.81-11,889.99-3,541.52

Finding the Fourth Proportional to 7,922.81, 11,889.99 and 3,541.52

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Solution

The fourth proportional to 7,922.81, 11,889.99 and 3,541.52 is: 5,314.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.81 : 11,889.99 = 3,541.52 : x
  2. Step 2: Convert to fraction form
    7,922.81/11,889.99 = 3,541.52/x
  3. Step 3: Cross multiply
    7,922.81x = 11,889.99 × 3,541.52
  4. Step 4: Simplify right side
    7,922.81x = 42,108,667.11
  5. Step 5: Solve for x
    x = 42,108,667.11/7,922.81
  6. Step 6: Final answer
    x = 5,314.86

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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.