Home / 5,131.41-7,074.84-3,450.18

Finding the Fourth Proportional to 5,131.41, 7,074.84 and 3,450.18

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Solution

The fourth proportional to 5,131.41, 7,074.84 and 3,450.18 is: 4,756.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.41 : 7,074.84 = 3,450.18 : x
  2. Step 2: Convert to fraction form
    5,131.41/7,074.84 = 3,450.18/x
  3. Step 3: Cross multiply
    5,131.41x = 7,074.84 × 3,450.18
  4. Step 4: Simplify right side
    5,131.41x = 24,409,471.47
  5. Step 5: Solve for x
    x = 24,409,471.47/5,131.41
  6. Step 6: Final answer
    x = 4,756.87

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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.