Home / 7,785.32-11,680.07-2,239.11

Finding the Fourth Proportional to 7,785.32, 11,680.07 and 2,239.11

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Solution

The fourth proportional to 7,785.32, 11,680.07 and 2,239.11 is: 3,359.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.32 : 11,680.07 = 2,239.11 : x
  2. Step 2: Convert to fraction form
    7,785.32/11,680.07 = 2,239.11/x
  3. Step 3: Cross multiply
    7,785.32x = 11,680.07 × 2,239.11
  4. Step 4: Simplify right side
    7,785.32x = 26,152,950.34
  5. Step 5: Solve for x
    x = 26,152,950.34/7,785.32
  6. Step 6: Final answer
    x = 3,359.27

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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.