Home / 7,923.64-11,881.41-2,656.75

Finding the Fourth Proportional to 7,923.64, 11,881.41 and 2,656.75

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Solution

The fourth proportional to 7,923.64, 11,881.41 and 2,656.75 is: 3,983.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.64 : 11,881.41 = 2,656.75 : x
  2. Step 2: Convert to fraction form
    7,923.64/11,881.41 = 2,656.75/x
  3. Step 3: Cross multiply
    7,923.64x = 11,881.41 × 2,656.75
  4. Step 4: Simplify right side
    7,923.64x = 31,565,936.02
  5. Step 5: Solve for x
    x = 31,565,936.02/7,923.64
  6. Step 6: Final answer
    x = 3,983.77

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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.