Home / 7,785.37-11,678.73-2,239.17

Finding the Fourth Proportional to 7,785.37, 11,678.73 and 2,239.17

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Solution

The fourth proportional to 7,785.37, 11,678.73 and 2,239.17 is: 3,358.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.37 : 11,678.73 = 2,239.17 : x
  2. Step 2: Convert to fraction form
    7,785.37/11,678.73 = 2,239.17/x
  3. Step 3: Cross multiply
    7,785.37x = 11,678.73 × 2,239.17
  4. Step 4: Simplify right side
    7,785.37x = 26,150,661.85
  5. Step 5: Solve for x
    x = 26,150,661.85/7,785.37
  6. Step 6: Final answer
    x = 3,358.95

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1.5x scale

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.