Home / 5,049.21-6,968.35-2,811.51

Finding the Fourth Proportional to 5,049.21, 6,968.35 and 2,811.51

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Solution

The fourth proportional to 5,049.21, 6,968.35 and 2,811.51 is: 3,880.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,049.21 : 6,968.35 = 2,811.51 : x
  2. Step 2: Convert to fraction form
    5,049.21/6,968.35 = 2,811.51/x
  3. Step 3: Cross multiply
    5,049.21x = 6,968.35 × 2,811.51
  4. Step 4: Simplify right side
    5,049.21x = 19,591,597.13
  5. Step 5: Solve for x
    x = 19,591,597.13/5,049.21
  6. Step 6: Final answer
    x = 3,880.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.