Home / 7,868.36-11,798.28-3,910.96

Finding the Fourth Proportional to 7,868.36, 11,798.28 and 3,910.96

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Solution

The fourth proportional to 7,868.36, 11,798.28 and 3,910.96 is: 5,864.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.36 : 11,798.28 = 3,910.96 : x
  2. Step 2: Convert to fraction form
    7,868.36/11,798.28 = 3,910.96/x
  3. Step 3: Cross multiply
    7,868.36x = 11,798.28 × 3,910.96
  4. Step 4: Simplify right side
    7,868.36x = 46,142,601.15
  5. Step 5: Solve for x
    x = 46,142,601.15/7,868.36
  6. Step 6: Final answer
    x = 5,864.32

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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.