Home / 7,817.79-11,727.99-2,887.44

Finding the Fourth Proportional to 7,817.79, 11,727.99 and 2,887.44

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Solution

The fourth proportional to 7,817.79, 11,727.99 and 2,887.44 is: 4,331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.79 : 11,727.99 = 2,887.44 : x
  2. Step 2: Convert to fraction form
    7,817.79/11,727.99 = 2,887.44/x
  3. Step 3: Cross multiply
    7,817.79x = 11,727.99 × 2,887.44
  4. Step 4: Simplify right side
    7,817.79x = 33,863,867.45
  5. Step 5: Solve for x
    x = 33,863,867.45/7,817.79
  6. Step 6: Final answer
    x = 4,331.64

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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.