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Finding the Fourth Proportional to 3,808.88, 5,707.56 and 2,715.56

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Solution

The fourth proportional to 3,808.88, 5,707.56 and 2,715.56 is: 4,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.88 : 5,707.56 = 2,715.56 : x
  2. Step 2: Convert to fraction form
    3,808.88/5,707.56 = 2,715.56/x
  3. Step 3: Cross multiply
    3,808.88x = 5,707.56 × 2,715.56
  4. Step 4: Simplify right side
    3,808.88x = 15,499,221.63
  5. Step 5: Solve for x
    x = 15,499,221.63/3,808.88
  6. Step 6: Final answer
    x = 4,069.23

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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.