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Finding the Fourth Proportional to 3,087.99, 4,650.48 and 2,811.51

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Solution

The fourth proportional to 3,087.99, 4,650.48 and 2,811.51 is: 4,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.99 : 4,650.48 = 2,811.51 : x
  2. Step 2: Convert to fraction form
    3,087.99/4,650.48 = 2,811.51/x
  3. Step 3: Cross multiply
    3,087.99x = 4,650.48 × 2,811.51
  4. Step 4: Simplify right side
    3,087.99x = 13,074,871.02
  5. Step 5: Solve for x
    x = 13,074,871.02/3,087.99
  6. Step 6: Final answer
    x = 4,234.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.