Home / 7,131.21-10,695.81-2,451.15

Finding the Fourth Proportional to 7,131.21, 10,695.81 and 2,451.15

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Solution

The fourth proportional to 7,131.21, 10,695.81 and 2,451.15 is: 3,676.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.21 : 10,695.81 = 2,451.15 : x
  2. Step 2: Convert to fraction form
    7,131.21/10,695.81 = 2,451.15/x
  3. Step 3: Cross multiply
    7,131.21x = 10,695.81 × 2,451.15
  4. Step 4: Simplify right side
    7,131.21x = 26,217,034.68
  5. Step 5: Solve for x
    x = 26,217,034.68/7,131.21
  6. Step 6: Final answer
    x = 3,676.38

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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.