Home / 3,718.11-5,131.04-2,321.67

Finding the Fourth Proportional to 3,718.11, 5,131.04 and 2,321.67

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Solution

The fourth proportional to 3,718.11, 5,131.04 and 2,321.67 is: 3,203.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.11 : 5,131.04 = 2,321.67 : x
  2. Step 2: Convert to fraction form
    3,718.11/5,131.04 = 2,321.67/x
  3. Step 3: Cross multiply
    3,718.11x = 5,131.04 × 2,321.67
  4. Step 4: Simplify right side
    3,718.11x = 11,912,570.03
  5. Step 5: Solve for x
    x = 11,912,570.03/3,718.11
  6. Step 6: Final answer
    x = 3,203.93

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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.